ASTM A53 Grade A DN40 SCH80 Seamless Steel Pipes dn40 steel pipe
Seamless steel pipes standard:ASTM A106,ASTM A53,API 5L,API 5CT,ASTM A335,DIN 2448,etc.Schedule:SCH20,SCH40,STD,SCH60,SCH80,etc.Size:DN40.Material:ASTM carbon steel dn40 steel pipe
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