HB 6014-2008 Elbow 90° screwed-onto flarsless tube 21MPa《21MPa无扩口拧入式90°弯管接头》.pdf

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HB 6037-2008 21MPa无扩口拧入式三通管接头.pdf

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HB 6001～6003-2008 21MPa无扩口拧入式45°弯管接头.pdf

HB 6037~6039-2008 21MPa无扩口拧入式三通管接头.pdf

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HB 7857-2008 28MPa无扩口拧入式90°弯管接头.pdf

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