stainless steel tube 1.material:304;304L;316;316L(ASTM,DIN;GB) 2. ... Polishing) JTS, ASTM, GB,DN,SUS201,304,316etcGB/T14975-2002,GB/T14976-2002,GB13296-2007ASTM A213, ASTM A269, ASTM A312, JIS G3459 ... of 1500°F (816°C)chemical composition product pictures: ss tube 316l