Standards: ASTM A519, DIN1629, DIN2391, ASTM A513, BS6323, EN10305-1, JIS3441 Sizes: OD: 10.3mm -711.2mm, W.T.: Hot finish: 0.250”-4.00”, Cold Drawn: 0.035”-0.875” Length:随机长度,固定长度,SRL,DRL。热处理:退火,归一化,压力缓解,冷。等级:机械管:1010,1020,1045,1518,4118,4130,4135,4140 for Structures:ST37.0,ST44.0,ST55,ST52,ST52