... .Competitive price4.ISO9001,PED and API approvedSpecifications Materialcarbon steel, stainless steel, alloy steelTechniquewelded, bending,forged,exturdConnectionweldingHead codebevel the endSize1/2'' to 72''/DN15 ... otherCertificatesISO-9001/2000,API,PEDSpecial design available as requirement carbon steel tee elbow,tee ANSI B16.11 6000lb A105 Forged Steel SW tee