Detailed Product Description 1) Carbon Stell Pipe-Caps 2) Major Products: Elbow, Seamless pipes, Reducer, Tee, Pipe Cap, Flange etc. 3) Varieties: SGP, STD, SCH40, SCH80, SCH160 4) Standard: ANSI B16.9 / 16.28, DIN2605/2615/2616, JIS 5) Material: Carbon steel (WPB A234)6) Size: 1/2"-48" 7) Surface treatment: Transparent oil, rust-proof oil