Our main products include: 1. seamless steel pipes, 2. hot-finished pipes, 3. welded steel pipes, 4. pipe fittings. ItemMaterialStandardSpecification(OD*WT)mmUsageAlloy pipe35CrMoCr5Mo15CrMo12Cr1MoV P11/22 T91,P91,P9,T9 Wb36GB5310-95 GB9948-88ASTMA335/A335MASTMA213/213MDIN17175-79JISG3467-88JISG3458-8816-824*2-100The seamless steal pipesfeatures resistance to high presure,high/low temperature and ...