Introduce :
Standard: BS 1387,BS EN10219,BS EN10217,ASTM A1020-2002,ASTM A672-2006,ASTM A234-2007,ANSI A210-1996,ASTM A335-2006,ASTM A53M-2007,BS,ASTM
Grade: A53(A,B),A106(B,C),St37,St42,Q235,Q345,Q195,Q215,A53-A369,ST35-ST52,Q195-Q345
Location:
China