... ,202,304,316L,430,etc 4). Standard: Standard JIS, AISI, ASTM, GB, DIN, EN 4). Surface Treatment: Mirror,Satin/HL5). ... rot test, heat treatment, NDTSpecification:1). Model No.: 310S310S stainless steel pipe with perfect surface settlement, strict tolerance, high quality, most reasonable ... Material: 201, 202, 301, 304, 304L, 316, 316L ,321,317L,310S,904L and,etc.,3). Technique Cold Rolled,Hot Rolled, Cold ...