... ,6D,7D-40D.Thickness--SCH10,SCH20,SCH30,STD SCH40, SCH60, XS, SCH80., SCH100, SCH120, SCH140, SCH160, XXSStandard --ASME B16.9, ASME ... Sand-blasting machine,etcTest-- Direct reading light spectrum, hydrostatic test ,X-ray detector,ultrasonic flaw detection ,magnetic powder detector ,etcQualification-- API ,CE ...