stainless seamless steel tube 1.WT:0.5-45mm 2.OD:6-630mm 3.304,304L,316,316L,317L,321,347H,409,409L,410S, ... 420,430,201etc stainless seamless steel tube ProductStainless Seamless Steel Tube BrandGuo Ze Capacity100 ... pickled/ annealed /manual polished / mechanical polishedQuality304,304L,309S,310S,316,316L,316Ti,317L,317L,321,347H,409,409L,410S,420 ...