CS seamless pipe

spiral steel pipe OUTSIDE.D 219--2220mm W.T 6--18mm STANDARD SY/T5037-2000 GB9711.1 GB9711.2 API5L MATERIAL Q235B/Q345B/L245/L290/L360/L415/L485/20# API 5L.B/X42/X52/X60/X70 etc ERW steel pipe OUTSIDE.D 219--406mm W.T 6--14mm STANDARD GB3091-2001 GB9711.1 GB9711.2 API5L API 5CT MATERIAL Q235B/Q345B/L245/L290/L360/L415/L485/20# API 5L.B/X42/X52/X60/X70 etc seamless steel pipe OUTSIDE.D 140--273mm W.T 6--26mm STANDARD GB/T8162-1999 GB/T8163-1999 GB3087-1999 GB5310-1999 API5L API 5CT MATERIAL Q345B/20#/45#/20G/16Mn/J55/K55/L80/API 5L.B X42/X52/X60/X70 etc Best Regards Catherine song TEL : 86 137 227 777 47 Mail: chinapipe86 (a) gmail (dot) com MSN: chinapipe86 (a) hotmail (dot) com