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 ي عالح  ر طشك , , ه ب ا س أ ا ه ع ن ا ه ع رط واهتجا Welding defects Detection Ways, Types, causes and correction  فصل ا1 م34 دع ه   ! ه "  ا # ي

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    , , Welding defects

    Detection Ways,Types, causes and correction

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