Stainless Steel welding pipe Material : 201, 202, 321, 301, 302, 304, 321H, 304L, 316, 316L, 317, 317L, 310, 310S, 904L, 316TI, 409, 410, 430, 439, 309S, 309, 308, 410S, 20# , 420, 409L, 347, 436L, 1Cr18Ni9Ti, 315N, 329, Q235, 444, 15CrMo, TP316L, 45# , 35CrMo and so on Thickness : 0.3-50mm Diameter : 6-3000mm