carbon steel seamless pipe OD:60mm-273mm WT:3.5mm-25mm Standard:ASTM,DIN,API,JIS etc... Place of ... .45#,27SiMn20008pipes for high-pressure fertilizer equipment20G,15MnV10009Shipping use of tube320,4101000Total200000FQM continuous rolling unit(OD60—180mm,wall ... 20,16Mn,15Mnv,12CrMo,15CrMo90009Structural use of seamless steel tubes10,20,45,35CrMo,40Cr3500010Shipping use of tube320,360,410,4609000 Total ...