Introduce :
Standard: BS 1387,BS EN10296,BS 6323,BS 31,JIS G3461-2005,JIS G3462-2004,JIS G3452-2004,GB 13296-2007,GB/T 3091-2001,GB 18248-2000,GB/T 3089-1982,GB/T 17396-1998,DIN EN 10216-1-2004,DIN EN 10217-1-2005,DIN 1630,BS,JIS,GB,DIN
Grade: A53(A,B),A312,A335 P11,A192,A226,A135-A,API J55,API K55,API N80,API L80,API P110,Q235,Q345,Q195,Q215,A53-A369,API J55-API P110,Q195-Q345
Location:
China