stainless seamless steel tube 1.WT:0.5-45mm 2.OD:6-630mm 3. ... ,409,409L,410S,420,430,201etc stainless seamless steel tube ProductStainless Seamless Steel Tube BrandGuo Ze Capacity100,000 tons/yearWI0.50-45mmOD6 ... ,202,etc.NPS1/8" to 10"Schedule5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160SSurface FinishNO ...