310 stainless steel pipe 1.Standard: ASTM, JIS, DIN, EN. 2.OD: 6-530mm ... pipestandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S,430,409specificationWall thickness0.3mm-20mmRound6.5mm-406mmSquare10 ... barstandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S,430,409specificationRound Square rectangle If you are ...