... Stainless Steel Round Bar Product Instructions: 1) Grade: 201, 202, 301, 302, 304, 304L, 316, 316L etc.,2) Standard: AISI, ASTM, DIN, GB ... boiler, high temperature resistant, low temperature resistant, corrosion resistant seamless steel pipe used. Machined components, dairy equipments, valves, fasteners, machine ... 86-022-26344928 Fax: 86-022-263447584 2B/BA/NO.1/NO.4 stainless steel round bar