... specifications according to your requirements.2) Our products are corrosion and high-temperature resistant.3) Main grades 304, 304L, 316, ... 4) Standards: ASTM A312, ASTM A213, ASTM A269, ASTM A511 and GB/T14975-2002, GB/T14976-2002, GB13296-91, GB9948-88 ... , power, paper-making, chemical, medical equipment, aviation, boiler heat-exchanger and other fields Seamless Stainless Steel Tubing and Piping