... Size:1/2"--48" 3. Thickness:SCH5S--SCH160 ASTM A403 stainless steel pipe fitting1. TYPE: TEE, ELBOW, REDUCER, CAP, LAP ... ,HG/T21635 ,HG/T21631.5. Material: Stainless Steel, Nickel Copper, Carbon Steel, Low Alloy Steel, Alloy Steel.Stainless Steel material:A403-WP304,A403-WPB304L,A403WP316,A403WP316L, ... ,gas,medicine,construction industry etc. ASTM A403 stainless steel pipe fitting-ex ISO certificated