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Wholesale Steel Construction Industry Store This is the Public Infrastructure Cons...
dn40 pipe stainless steel size 1.good quality 2.OD:20--406mm 3.WT:SCH40--SCH...
dn40 pipe stainless steel size 1.good quality 2.OD:20--406mm 3.WT:SCH40--SCH160 ...
1. Standard: GB, ASTM, JIS, DIN American standard: US A128 Europe standard:...