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1.Commodity 310S stainless steel pipe 2.Material 201,202,301,TP304,304L,304N,304LN, 309S,310S, TP316,316,316L,316Ti,316LN,317,317L,321,347, TP347H,etc 3.Standard ASTM,JIN,DIN,AISI,SUS,GB,EN,etc. 4...