... :20#,45#,Q235 our company supplies stainless steel pipe,plate,bar,coil,alloy pipe,and so on. SPECIFICATIONS Type carbon steel ... ASTM, ASME, EN, BS, GB,DIN, JIS, etcMaterial201,202,301,304,304L,316,316L,317, 317l,321,309S,310S,410,410S ... in future! cold rolled astm a53a/b carbon steel channel bar