steel elbow : 1.SIZE: 1/2 inch-72 inch 2.WALL THICKNESS: SCH-5S to SCH-XXS 3.STANDARD: ASME,ANSI, JIS, DIN,GB ,EN 1.Size:From 1/2" to 48" (Seamless pipe fittings). From 26" to 72" (Seam pipe fittings)2.Wall thickness: Sch5-Sch160,XXS3.Standard: ANSI, JIS, DIN, GB/T12459,GB/T13401,ASME B16.9.SH3408 SH3409, HG/T21635,HG/T21631,SY/T050104.Material: A234-WPB.A420-WPL6.A234-WP12.A234-WP11.A234-WP5. ...