... :1 Pcs Certificate:ISO9001 ASME CE API keywords:steel recucer,seamless reducer,carbon steel seamless reducer Size1/2"- 48"(DN15-DN1200)Wall ... B 16.9,ASME , ASTM,,JIS , DIN , EN,MaterialCarbon steel, alloy steel, stainless steel ConnectionButt-welding,forged fittingApplications rangsuch as oil, chemical industry, water conservancy ...