1. A519 2. cold, annealing, stress relieving, normalizing 3. 1010,1020,1025,1035,1045 Cold Drawn Seamless Mechanical Tube Cold Drawn ... )1) Certificate: ISO9001:2000, TS169492 Spec.: ASTM A5193) Steel Gr.: 1010, 1020,1025,1035,1045, etc4) O.D: 4mm-90mm5) W.T ...