ASTM, GB, JIS, DIN, API, bs, ASTM A106-2006, ASTM A53-2007, ASTM A53M-2007, ASME B36.10M-2004, GB/T 3091-2001, GB/T 13793-1992, JIS G3444-2006, JIS G3466, DIN 2444, API 5L, BS 1387, BS 1139, BS 4568, BS EN 39
Q195-Q345, A53-A369, ST35-ST52, 10#-45#, Q235, Q34