steel elbow Nominal pipe size: 1/2 to 48 inches (DN15 ... XXS 1.Type:steel pipe 45-degree elbows, 90-degree elbows, 180-degree returns, straight Tees, reducing Tees, caps, concentric reducers ... A 234 WPB, JIS G3452, DIN 1629 4.Nominal pipe size: 1/2 to 48 inches (DN15 to DN1200 ... thickness: SCH20, STD, SCH40, XS, SCH80, XXS (for ANSI); SGP (for JIS) 6. Available painting: varnish paint, black paint steel ...