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ѹPN1.6~10.0MpaClass150~600Lb
ͨDN15~250NPS1/2"~10"
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Ʊ׼GB/T12237API6DASME B16.34
ṹȣGB/T12221API6DASME B16.10
ӷHGGBJBAPIANSIISOBSDINNFJIS
׼JB/T9092GB/T13927API6DAPI598
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