... >Ensure you quality,timely delivery; 3>Had been approved by ASTM. alloy seamless steel pipe: Material: 12Cr1MoV, P22(10CrMo910), T91, P91, P9, T9, WB36 ... terms: T/T or L/C Package: painting black, pipe cap, steel strips bundled or according to customer's requirement. Certificate:1 ... the Official API Monogram.2> Boiler and Super-heater Pipes,Seamless Pressure Pipes had been approved by CCS.3> The quality ...