... P91 ASTM A860 WPHY 70, WPHY 65, WPHY 60, WPHY 52,WPHY 46,WPHY 42, etc .Equipment -- Press machine ,Bending ... -blasting machine,etcTest-- Direct reading light spectrum, hydrostatic test ,X-ray detector,ultrasonic flaw detection ,magnetic powder detector ,etcQualification-- ... shipbuilding, papermaking, construction, etcSpecial design available as the requirement of customer] seamless pipe fittings SCH40