... DN15-DN2000Angleselbows,bend,tee,cross,reducers,cap,pipe, flanges,socket steel fittings,nippleWTSch5-SchXXS ,such as SCH20, SCH40, ... industry, petroleum industry, construction industry, domestic installation and otherCertificatesISO-9001/2000,API,PEDSpecial design available as requirementWe ... standard of ANSI ,DIN, JIS,EN and also can do that by your requirement. socket weld forged steel fittings