O. D. Range: 5mm~820mm. W. T. 0.5mm~80mm.
Process: Cold drawing, cold rolling, hot rolling, hot expanding.
Standard we could supply is as below:
ASTM: A53, A106, A192, A179, A210, A519, A312, API 5L, API 5CT, etc.  
DIN: DIN17175, DIN1629, DIN2440, DIN2391, DIN2393, etc.          
EN: EN10210, EN10255, EN10216, EN10297, EN10305.