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 Capacity100,000 tons/yearWI0 ... polishedQuality304,304L,309S,310S,316,316L,316Ti,317L,317L,321,347H,409,409L,410S,420,430,201,202,etc.NPS1/8 ...