JIS, DIN, ASTM, GB, API, bs, JIS G3463-2006, JIS G3454-2007, DIN 1626, DIN 1629/4, ASTM A106-2006, ASTM A53-2007, GB 5310-1995, GB 3087-1999, API 5CT, API 5L, API 5DP, BS 1387, BS EN10296, BS 1139
Grade:
10#-45#, Q195-Q345, API J55-API P110, 16mn, A53-A369, 10#, 20#, 45#, Q235, Q345, Q195, Q215, API J55, API K55, 16mn, A53(A,B), A106(B,C)