14

中国节水灌溉网 · 2013. 10. 24. · GB/T 10002. 1—2006 [ISO 4422: 1996, Pipes and fittings made of unplasticized poly (vinyl chloride) (PVC-U) for water supply—Specifications,

  • Upload
    others

  • View
    3

  • Download
    0

Embed Size (px)