... term supply stainless steel products, including stainless steel seamless pipes,stainless steel bar and stainless steel sheet. The material ... Vibration,Bead Blast,Embossed The stainless steel pipestandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S ... ,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S,430,409specificationRound Square rectangle Stainless Steel Seamless Pipes & Tubes