SIZE: 1/2"-48"、DN15-DN1200 WALL THICKNESS: SCH-5S to SCH-XXS STANDARD: ASME ANSI B16.9,JIS,DIN MATERIAL:ASTM A234-WPB,A420-WPL6/L3etc.;ASTM A234-WP12,WP11,WP15,WP22,WP1,WP5,WP9,WP9 USE:Petroleum,chemical,power,gas,metallurgy, shipbuilding, construction, etc. SIZE: 1/2"-48"、DN15-DN1200 WALL THICKNESS: SCH-5S to SCH-XXS STANDARD: ASME ANSI B16.9,JIS,DIN MATERIAL:ASTM A234-WPB,A420-WPL6/L3etc.;ASTM A234-WP12,WP11,WP15,WP22,WP1,WP5,WP9,WP91 USE:Petroleum,chemical,power,gas,metallurgy, shipbuilding, construction, etc.