... Material: carbon steel (seam & seamless) Qualification: ISO9001, API, CE, 90 degree elbow 1, Products: 90 Deg. LR Elbow, 90 Deg. SR Elbows ... Elbow 2, Thickness: SCH20, SGP, STD, SCH40, XS, SCH80, SCH160, XXS 3, Dimension: 1/2" to 72" 4, Material: carbon steel, alloy steel, stainless ... , mainly manufacture elbow, tee, reducer, cap, flange, cross, nipple, socket fitting, expansion joint and other series ...