Our company makes gears - 精密ギヤ･精密部品の株式会社 … · · 2016-07-25(6.0 proven track record) inner teeth ... It's suited for grinding spur or helical gears

http://www.ogic.co.jp/en/

2005 (c) Copyright OGIC Co.,Ltd.All Rights Reserved.

Our company makes gears

Examples by industry～ Automobile industry (1) ～

We convey the brilliance of technology with a human touch

Ogic Co., Ltd.

Maximum diameter

Number of teeth

Modules

Helix angle

Maximum workload

Grindstone operation speed

Grindstone

10mm-400mm

5～999

0.5-8.0

±45°

300Kg

1000-4100rpm

1～7

Recent changes to the machine’s structure have helped improve its rigidity and control, control capability.

Newly developed grindstones also help shorten production times. With the RZ400, you can make high-precision gears in about half the time than with the previous RZ362A model.

Low Noise ShiftingThis helps reduce grinding threads produced from previous grinding methods and achieves low-noise gears.Ghost noise created during the fourth stage is eliminated.

A specific grinding method, called Cool Cutting, makes face stress intensity stronger from previous methods.

http://www.ogic.co.jp/en/Our company makes gears


With dressing mechanism of REISHAUER RZ400, all the axes are NC-controlled and make it feasible to accurately implement profile dressing of gears with special module, pressure angle correction, and mesh ratio modification and it ensures a stable tooth form in quality and profile. In addition, NC-controlled motion of the single diamond dressing roll requires no special tools to perform complex tooth form correction.


Examples by industry～ Automobile industry (2)～


Ogic Co., Ltd.


For manufacturing small quantities of bevel gears, Ogic’s spiral bevel gear grinders can make these gears from raw materials without the teeth being cut. With this method, prototypes or small quantities can be manufactured economically and with short delivery periods, without having to prepare gear-teeth cutting tools that are expensive and require long delivery periods.By adopting a data link system for the final grinding process, it enables the creation of gears by simply following their designs. In addition, designers can directly receive noise and load-capacity data. Following the above process, We have accumulated expertise of spiral bevel gears and hypoid gears.

Applicable systems

The computer-assisted value revised program is advocated by the Klingenberg Oericon Group. It revises the gap between the actual measurement and nominal data of bevel hypoid gear teeth in a way that’s fully automatic and efficient.

Klingelnberg cyclo-palloid / Klingelnberg palloid / Oerlikon spiroflex / Oerlikon / Oerlikon / Gleason Duplex Completing / Gleason 5 cut / Gleason triac


Examples by industry～ Automobile industry (3)～


Ogic Co., Ltd.



Examples by industry～ The aerospace industry ～


Ogic Co., Ltd.

Processing gears made of special materials, such as AMS and titanium, the turning of complex thin parts and milling process have received high evaluation from customers at home and abroad.We regret we cannot disclosure details about these businesses due to confidentiality issues. However, we do out utmost to maintain strict quality management and management of our facilities and data, as required in the aerospace industry.

Ogic is located in Higashiosaka, known for its large number of small and medium-sized companies. It is often said that when Higashiosaka’s technology is put together, rockets can be launched. At present, a project to launch an artificial satellite is under way. Of course, Ogic is involved.


We have tried to make double lead worm gears to meet our customers'requests for

high-speed rotary tables. However, we failed many times with the precision. Finally, we obtained cooperation from hobbing makers and many other companies to complete high-precision double lead worm gears.

Examples by industry～ Machine tool industry (1) ～


Ogic Co., Ltd.

• Machine tool rotary tables• index tables

• ideal gear system• High precision, high efficiency, high durability• Double worm gears that are high precision as well as high speed

Shigeyuki Azuma, Worm Gear Shop (employed at Ogic for five years)




Examples by industry～ Machine tool industry (2) ～


Ogic Co., Ltd.

High-precision curvic couplings have long been made by a limited number of manufacturers. They have been expensive and of low quality and required long delivery periods.But since our introduction of new and effective equipment, it is now possible to manufacture high-precision curvic couplings efficiently.

Here are some of our achievements.[Specification for 1 degree calculation (360 teeth)]index precision: less than 2 secondsface edge runout at stacking time: less than 0.01inner outer diameter runout: less than 0.01tooth height direction: 90 percent or moretooth line direction: 90 percent or more

Confirmation on deflection at stacking, and measurement of pitch can be easily confirmed with P40 or P100 gear measuring equipment. Measured data are reliable and highly evaluated by our customers.



Examples by industry～ Metal molding industry ～


Ogic Co., Ltd.

By using the data link system (see the automobile industry section), which works with spiral bevel gear grinders and gear inspection machines, hypoid gear electrodes for precision-forging metal molds can be made easily.When compared to electrodes, some errors of pressure angle, skew and size occur on precision forging gears, which were finally transferred from hypoid-gear electrodes made under the nominal data.Confirm the gap of a precision-forge gear by comparing it with nominal data via a gear inspection machine. Then, re-process the gear by using KOMET to make it close to nominal data. By repeating this procedure, it is possible to make a precision forge gear with nominal tooth form data. A hypoid-gear precision forge metal mold of a transportation machinery maker uses this method to make electrodes from solid processing (processing that uses grindstones on raw materials).


modules

maximum outer diameterMax.tip circle dia

1000mm

inner diameter

250 - 450

minimum teeth root diameterMin.root circle dia

15mm

outer diameter

- 700

maximum teeth widthMax.lace width

630 mm

helix angle

±45°

modulesMin.and MAX module

1 - 16

weight

1.5t (including jig)

maximum furnishing loadMAX. weight of workpiece

1500kg

1.0 - 5.0(6.0 proven track record)

inner teeth

outer teeth


Examples by industry～ Shipbuilding industry ～


Ogic Co., Ltd.

The OPAL80 is a new type of high-precision gear-forming grinder that boasts a high rate of productivity. It's suited for grinding spur or helical gears with outer diameters of up to 1,000 millimeters. The forming is extremely precise, because the forming and dressing of the grindstone are done directly on the machine. As for grinding methods, the user can select whether to grind either one or both sides of a gear. Thanks to the machine's high level of performance, it's possible to grind from raw materials before the gear teeth are cut. The grinding system developed by this new concept can produce various types of gears, in small or medium quantities, for automobiles, aircraft, machine tools, vehicles, elevators, and other items at low cost yet with high precision.



Examples by industry～ Gear design development engineers ～


Ogic Co., Ltd.

Gear design support• The measurement of gears calculates engagement rate, slip rate and gear thickness.• Gear strength calculations are based on JGMA401-01 and 402-02 standards.• Loads on gears and bearings are calculated.• Noise control (slide rate and hertz stress graph)

Calculation of gear strength• Gear strength calculations are based on ANSI/AGMA2001 C95 standards.• Detailed values, including strength of gear bending, gear face, duration, and geometrical coefficients. • Slide rates, hertz stress, film thickness, flash temperature graph, and fraction and scoring probability.

transmission gap analysis• Analyzing the transmission gap of gear rotation• Evaluated by transmission gap graph and wow and flutter graph

Analysis of FEM tooth form applied power• Analyzing applied power by load affecting teeth• Calculating modified amount of tooth form by the amount of tooth displacement



Fastest delivery-time management in the industry


Ogic Co., Ltd.

Ogic employs an integrated computer system consisting of production plan simulation software and Point of Production (POP) information management to meet the needs of a wide variety of products during short delivery times. The system can be adjusted per needs.

Before we installed this system, we used to draw production plans once in a week based on requests from the sales department, the capabilities of manufacturing machines and workload. However, it was hard to rearrange production plans when difficult orders suddenly emerged. To meet strict delivery times, staff were forced to work overtime, including on holidays. That pushed our costs higher.

The system employed today relies on data － including progress information, setup time, machine capabilities, number of workers, and complete date of subcontract products – to instantly form optimal production plans with priority placed on delivery dates.

The system also responds to unscheduled orders while equalizing workloads to avoid overtime work. And yet forecasts are still possible. Moreover, in the event of sudden accidents caused by inferior products or machine stoppages, disruptions can be minimized. A year since its introduction, the system has managed to halve lead time on received orders compared to the previous year.



Ogic Co., Ltd. Products

■Spur GearsOgic’s gears are tailored exclusively to our customers’requirements. Our customers are in various machine industries: from machine tools, aerospace, robotics, and printing machines. All are satisfied with Ogic’s fully custom-made gears.(High-precision grinding is possible for all of our gears, apart from straight bevel gears.)

■Helical Gears ■Coupling Gears

■Spiral Bevel Gears & Hypoid Gears ■Master Worm Wheels

■Internal Gears ■Worm Gears


■Rack Gears ■Straight Bevel Gears


Spiral bevel gear grinders 메이커Manufacturer

WNC30 KLINGELNBERG

Number ofmachines

1

Minimum outerdiameter

20mm

Maximum outer diameter

410mm

Normal modules

1.0～12

Maximumgear width

40mm

Number of teeh

5～360

Spiral angle

0°～60°

G30 KLINGELNBERG 1 20mm 450mm 1～18 80mm 5～120 1°～60°

Gear-forming grinders 메이커Manufacturer

OPAL80 Oerlikon

Number ofmachines

1

Minimum pitchdiameter

16mm

Maximum outerdiameter

1000mm

modules

16

Maximumgear width

630mm

Number of teeh

999

Maximum attachment load

1500kg

Gear-making grinders 메이커Manufacturer

SD62/82 MAAG

Number ofmachines

2

Minimum pitchdiameter

150mm

Maximumouter diameter

820mm

modules

2～16

Maximumgear width

300mm

Number of teeh

12～250

Maximumattachment load

400kg

SD36X MAAG 2 20mm 360mm 1～12 350mm 10～150 60kg

SD32X MAAG 2 20mm 320mm 1～12 200mm 10～150 60kg

Gear-forming grinders Manufacturer

RZ820 REISHAUER

Number ofmachines

1

Minimum gearbottom diameter

40mm


820mm

modules

0.5～8

Maximumgear width

300mm

Number of teeh

10～600


400kg

RZ801 REISHAUER 1 60mm 800mm 0.5～8 300mm 10～600 400kg

RZ400 REISHAUER 1 10mm 400mm 0.5～8 300mm 5～999 300kg

RZ361S REISHAUER 1 10mm 360mm 0.5～6 180mm 10～600 60kg

RZ300E REISHAUER 3 10mm 300mm 0.5～5 180mm 10～256 50kg

Worm grinders Manufacturer

HNC35 KLINGELNBERG

Number ofmachines

1

Minimumgrinding diameter

10mm

Maximumgrinding diameter

350mm

Maximumgrinding length

650mm

Maximumnumber of modules

25

Number of teeh

1～99

Distance betweenthe two centers

1330mm

MKG1000 MIZOGUCHI 1 10mm 350mm 800mm 16 99 1000mm

Spline grinders (or Splined-shaft grinders) Manufacturer

SSG152VB OKAMOTO

Number ofmachines

3

Minimumgrinding diameter

11mm


125mm


1500mm

Maximumshaft length

1680mm

Number of teeh

3～12


150g

Spiral bevel gear cutters Manufacturer

NO641 GLEASON

Number ofmachines

1

Minimumouter diameter

60mm


745mm

Normal modules

3～12.7

Maximumgear width

66mm

Number of teeh

5～100

Spiral angle

-

KNC40 KLINGELNBERG 1 20mm 450mm 1.5～12 80mm 5～120 1°～60°

SBG10C TSUNASHIMA 2 17mm 100mm ～3 25mm 12～120 -

Straight bevel gear cutters Manufacturer Number ofmachines

Minimumouter diameter

Maximumouter diameter Normal modules Maximum

gear width Number of teeh

ZFTK250*10 MODUL 2 20mm 250mm 1.5～7 40mm 6～100

Hobbing machines Manufacturer

ZFWZ10 MODUL

Number ofmachines

1

-

-


1250mm


～16

Maximumvertical movement

630mm

Hobbingtable center distance　

80～980mm

KW1000CNC KASHIFUJI 1 - 750mm ～12 450mm 60～610mm

KR1000 KASHIFUJI 1 - 700mm ～10 450mm 60～610mm

KA400 KASHIFUJI 1 - 400mm ～8 320mm 30～330mm

KW450CNC KASHIFUJI 1 - 400mm ～8 320mm 30～330mm

KS14 KASHIFUJI 1 - 360mm ～6 300mm 0～270mm

MS30 SEIWA 1 - 300mm ～6.35 350mm 20～255mm

MH600 SEIWA 2 - 450mm ～5.08 300mm 30～370mm

MH6DS SEIWA 1 - 300mm ～6.35 380mm 30～270mm

MH300 SEIWA 3 - 300mm ～5 230mm 20～270mm

GHM7A KARATSU 1 - 700mm ～10 400mm 100～600mm

Worm cutters Manufacturer

MKN800 MIZOGUCHI

Number ofmachines

1

-

-

Maximumprocessing diameter

100mm

Maximumprocessing length

600mm


12

Number of teeh

1～99

TM1A OGAWA 1 - 240mm - 10 1～4

Distancebetween the two centers

800mm

600mm

Gear shapers Manufacturer Number ofmachines - Maximum

outer diameterMaximumgear width Number of gears Taper angle

SC25CNC MITSUBISHI 1 - 250mm 60mm ～400 ±10°


250kg

Rack gears Manufacturer

NR20 SAIKUNI

Number ofmachines

1

modules

1～20


300mm


2000mm

SR2/2000 SHINOHARA 1 1～10 150mm 2000mm



Ogic Co., Ltd. Gear manufacturing equipment

Processing equipment

KB400 KASHIFUJI 1 - 400mm ～8 320mm 30～330mm




Processing equipment

SPIRAL BEVEL GEAR GRINDING MACHINES


Effective grinding processes for spiral bevel gears cut by all bevel gear-cutting systems (Gleason, Oerlikon,Klingelnberg) are possible. This grinder is used for hypoid gears and spiral-bevel gears with outer diameters of up to 420mm. What’s more, the grinder is capable of high-precision grinding for face-type coupling and Gleason-type carving coupling. In particular, it can achieve the highest level of accuracy for bevel gears, which are key parts in the aircraft industry.

The OPAL80 is a new type of high-precision gear-forming grinder that boasts a high rate of productivity. It’s suited for grinding spur or helical gears with outer diameters of up to 1,000 millimeters. The forming is extremely precise, because the forming and dressing of the grindstone are done directly on the machine. As for grinding methods, the user can select whether to grind either one or both sides of a gear. Thanks to the machine’s high level of performance, it’s possible to grind from raw materials before the gear teeth are cut. The grinding system developed by this new concept can produce various types of gears, in small or medium quantities, for automobiles, aircraft, machine tools, vehicles, elevators, and other items at low cost yet with high precision.

Hobbing machines, which are exclusively for master wheelsSpecial precision guaranteed machines (available by special order)


Wire discharge processing machines

ROBOCUT

Manufacturer

FANUC

Number of machines

1

Cylindrical grinders (grinding machines)

GA 34XN 100

Manufacturer

OKUMA

Number of machines

1

LG 100 30T MINAKUCHI 1

Inner grinders (grinding machines)

GRI 1000N

Manufacturer

TAISEI

Number of machines

1

GI 20N OKUMA 2

IGV7NA TAIYO 1

SI 6 GLAUHAU 1

SI 4 B.W.F 3

Surface grinders (grinding machines)

GK 800

Manufacturer

SANSEI

Number of machines

1

SS 5F WASHINO 1

Machining and Milling machines

MCV 410

Manufacturer

O.K.K

Number of machines

1

YZ40 YAMAZAKI GIKEN 1

M0 KITAMURA 1

UPM 615 KOTOBUKI 1

MH 3PII O.K.K 1

MO 3V OTORI 1

Lappers (Lapping machines)

NO. 506

Manufacturer

GLEASON

Number of machines

1

AKI001 TSUNASHIMA 1

Lathes

MACTURN30

Manufacturer

OKUMA

Number of machines

1

WSC 12 MURATA WARNER 2

RAMO 6 O.K.K 2

Slotters (slotting machines)/key seater

MY 350

Manufacturer

YAMAGE

Number of machines

3

Broaching machines

NUV 10SA

Manufacturer

NACHI

Number of machines

1

Center grinders (grinding machines)

ZS 200

Manufacturer

HENNINGER

Number of machines

1




Supprt equipment

KCV 600 O.K.K 1


Gear inspection machines 메이커Manufacture

P100 KLINGELNBERG

Numberof machines

1

modules

0.5　-　20

P40 KLINGELNBERG 1 0.5　-　15

Maximum outer diameter

1000mm

400mm

Maximum load

2000kg

300kg

PNC 30VA KLINGELNBERG 1 0.5　-　15

CLP 35 OSAKA SEIMITSU 1 0.5　-　15

350mm

350mm

300kg

300kg

TTI450 TOKYO TECHNICAL 1 0.5　-　15 450mm 300kg

Worm gear single flank testers 메이커Manufacture

PSR 500 KLINGELNBERG

Numberof machines

1

Worm outer diameter

200mm

MWT 500 MIZOGUCHI 1 200mm

Center length

40　-　600mm

100　-　1100mm

Double flank testers 메이커Manufacture

GTR II OSAKA SEIMITSU

Numberof machines

1

-

-

Center length

58　-　300mm

Bevel gear engagementtesting machines (testers) 메이커Manufacture

NO.17A GLENSON

Numberof machines

1

UBT 30 TSUNASHIMA 1

UBT 20 TSUNASHIMA 1

UBT 10 TSUNASHIMA 2


Gear inspection facilities that meet global standards

Gears made by processing machines boasting the world’s highest standards are given a final check by Klingelnberg’s inspection machines, which are the industry standard when it comes to gear inspection.


Ogic Co., Ltd.



Ogic Co., Ltd. An optimal factory environment

Factories in which the temperature is fixed 24 hours a day to ensure products’ qualityIn Ogic’s grinding factories, the adoption of a new air-conditioning system maintains the factory with a fixed temperature for 24 hours a day and 365 days a year. This achieves a higher-precision quality management. By maintaining the factory at a fixed temperature, processing machines that are delicate in temperature and humidity are stable while operating. Gears also can avoid thermal expansion. The result is the manufacture of higher precision gears.Ogic’s quality guarantee system constantly progresses to maintain precision.

●Temperature control

We constantly determine the humidity in the factory. By controlling the quantity of cold and warm water, we adjust the temperature to a fixed degree of the air blowing through the air conditioning machines.

The new air-conditioning system using a pore ventilation board ensures the temperature is constant throughout the factory. The system ensures that the level of precision of the gears becomes higher, because the processing machines run more stably.

●Humidity control●Pore ventilation board ceiling system

The air-conditioning machine sends pressurization air, whose temperature and humidity have been adjusted, into the ceiling to pressurize the inside of the ceiling. Differences of air pressure from inside the factory make the air to go out through pore ventilation holes, like mist.Through this process, the air currents in the factory become constant. Temperature and humidity differences


The humidity in the factory is always detected. During summer months, an air-conditioning machine performs cooling dehumidification, while in winter months, it adjusts humidity by a humidifier built in the air-conditioning machine.



Ogic Co., Ltd. Corporate Profile

Name: Ogic Co., Ltd.

Headquarters: 1-15-33 Hishie, Higashiosaka, Osaka 578-0984

Phone numbers: 0729-65-1011

Facsimile: 0729-65-4192

E-mail [email protected]

Established: April, 1952

Capital: 65,000,000 yen

Sales amount: 1,807,000,000 yen (March, 2006 actual achievement)

Employees: 70 people

Board members: President and CEO Shuji Tanaka

President :Fumihiko Tanaka

The managing director: Masafumi Itinoki


Business sector: Manufacturing and sales of various types of high-precision gears

Bank of account: Sumitomo Mitsui Banking Corporation/Bank of Tokyo-Mitsubishi UFJ.,Ltd.

Membership: Japan Gear Manufactures Association (JAMA)

Kinki Gear Forum

Higashiosaka Chamber of Commerce and Industry

Osaka Prefectural Manufacturing & Industrial Association


□sales (thousands of yen)

current profit (thousands of yen)

equity ratio(%)

1999,3

1,166,530

24,500

30

2000,3

1,010,570

19,020

29

2001,3

1,346,660

125,750

36

2002,3

1,114,240

26,880

37

2003,3

1,046,310

26,770

41

2004,3

1,153,335

50,842

41

Tooth grinding gear 93％(Based on sales)

Monthly production of gears 15,000

Monthly production by products 1,500

Average lot numbers 10

■Composition of sales by products



Ogic Co., Ltd. Data

■The seventh business period transition

Ogic will mark the 55th anniversary of its foundation in 2007. For that year, we have set an objective of 2 billion yen in sales, a 20 percent current profit rate, and a 50 percent equity ratio. Aiming to be a leading company in this industry, we continue to invest in manpower, facilities, and information technology despite the difficult economic situation.

2005,3

1,531,516

193,173

43

2006,3

1,806,686

202,809

47

■Sales composition by users

About 50 percent of our products are manufactured for machine tool makers and peripheral equipment makers. The rest is for industrial machines, the printing machine industry, etc. Today, we sell our products to development and trial departments of the automobile industry and to the airline industry, and enjoy a high reputation.




Ogic Co., Ltd. Corporate Vision

Ogic will mark the 55th anniversary of its foundation in 2007. As the date approaches, we have established a set of objectives under a midterm plan aimed at making us the industry leader: sales of 2 billion yen, a 20-percent current profit rate in sales, and a 50-percent equity ratio.

We plan to establish a self-supporting accounting system for each group and division within the company to foster responsibility among personnel, so that high profits can be realized with as few workers as possible. The new personnel system, will clarify the company’s image of the ideal employee. Under the system, rewards will goto personnel who contribute to the company through their efforts and achievements. As part of company policy, we aim to develop ourselves as a technical organization whose members possess a sense of management.

As a core resource to remain competitive in manufacturing, we have decided to expand our activities in the field of master worm gears. We are proud to say we have the top market share in this field. Still, we will expand worm-gear grinders and testers, and install next-generation gear grinders of spur gears and helical gears. We will establish a firm position in this industry that will set us apart from our competitors. We acquired ISO14001 certification in June 2004 to clarify our participation in environmental conservation as well as our contributions to local communities.

Customers of Ogic gears are mainly in the machine-tool industry. We make gears under commissioned process that fully incorporate each customer’s requirements. Although it is hard to express Ogic’s unique attributes in this field, we have been making all possible efforts to establish our position in this industry. Our recent participation in the airline industry and development and trial departments in the automobile industry was aimed at expanding our customer base, and these efforts have been highly appraised.

When judging the quality of a product, there are two perspectives: the “birth” of a design and the “breeding” of production. For gears, the typical view stresses the importance of breeding (production). Although a number of companies have established manufacturing plants in China and elsewhere in Asia, most of these products can be manufactured anywhere, due to their good designs. Ogic manufactures gears with high value added, and so we will continue to stress our advantage of breeding in Japan to establish our leadership in the gear industry.




Ogic Co., Ltd. History

1969

1979

1952

1979

1996

2003

The third spiral bevel gear grinding machine was introduced to meet increased demand for spiral bevel gears. WNC30 realized improvements in the productive capacity of spiral bevel gears.

500 million yen was invested to introduce the Opal80 forming gear grinder, the spiral bevel gear grinder G30 and others, with the aim of making giant strides in our business as a precision gear manufacturer.

Eizo Tanaka, who was a director of Matsushita Metal, set up on his own company specializing in manufacturing and processing gears in Moriguchi, Osaka, as a Matsushita Electric affiliate company.

Aimed to enter new field of gears, acquired factory lot in preparation for introduction of new machines, and moved entire company to the new location.

Received investment from Small and Medium Business Investment Consultation Company, West Japan, increased our capital to 25 million yen in January, and to 65 million yen in April.

Completed a shift to the fiscal year 2000 version.

The MURG30BC gear-grinding machine was introduced as a prior investment, after the demand for high-quality gears was expected to rise. Along with its development,Ogic introduced a succession of other new machines.

1970

By the time the quality of products become substantial, share holdings of Matsushita Electric were purchased, and the company gained independence.

The Gleason No.641 spiral bevel-gears teeth grinding machine was introduced to expand our product line and entered the market.

1984

The Reishauer RZ300E was introduced to provide high quality products at low cost to meet our customers’requirements of high degrees of grinding precision. 1982

1990

The introduction of the W800CNC enabled Ogic to produce grinding spiral bevel gears that were used only in limited fields.

1991

To establish our corporate identity, we tried to remold awareness about the company. As part of this reform, we changed the company name to Ogic Co., Ltd.

1991

The introduction of the second Klingelnberg KNC40 grinder made enabled Ogic to manufacture all kinds of spiral bevel gears.

Newly constructed building factory had a new air conditioning system that maintains a fixed temperature and humidity for 24 hours a day, 365 days a year. The fully controlled quality guarantee system was set up. The company aims to make further development as a manufacturer specializing in precision gears. 　

1996

2000

2001

2000

2005

Completed a shift to the fiscal year 2004 version.


Documents

Our company makes gears - 精密ギヤ･精密部品の株式会社 … · · 2016-07-25(6.0 proven track record) inner teeth ... It's suited for grinding spur or helical gears