Stainless Steel Welded Tube  Standard: AISI, ASTM, GB, JIS, BS, DIN Material: 201, 301, 304, 309S, 310S, 316, 316L, 321, 410, 430 etc. Brand name :CHUN TENG Type: seamless Thickness: 0.25mm-3mm Outer Diameter : 8mm -127mm Length: 6 m or according to customer's requirement Technology: Hot rolling, pickling, cold drawn, polishing Application: machine manufacturing, auto ship, building, chemical, household appliances and other fields Surface: white flour