304 tube ( ASTM-A511) stainless steel 1.Supply directly by factory price ... 3).Standards: GB13296-1992; GB14976-2002; GB14975-2002; ASTM A269; A270; A312; JIS G3446; G3463; G3467,etc ... 202, 301, 302, 303, 304L, 304H, 309S, 309H, 310S, 316, 316L, 317, 317L, 321, 446, 904, 904L ... can make the molds to produce stainless steel seamless round, square, rectangular and profiled pipes with special specifications. ...