1,we ues the first grade material in China. 2,advanced testing equipment. 3,competitive price . Standard: JIS, AISI, ASTM, GB, DIN, EN Model Number: 310\310S\304\316\303\201\202\\410... etc Surface:Black/Bright/Polished ProductSUS304 2B cold rolled stainless steel barLength3000mm-6000mm or as customer's requirementStandardASME, ASTM, AISI,EN ,BS,GB,DIN, JIS etcMaterial201,202,304,304L,316,316L, ...