welding 90 degree elbow 1.Size:25-600mm 2.Standard:ANSI,DIN,JIS,BS ... our own factory 4.Carbon steel ProductElbow ;Pipe elbow;Pressing elbow,welding 90 degree elbowSize25-600mmMaterialCarbon stee(l20#,20G,16Mn,16MnR,106B,St45 ... customer's design and samples by different materialsCould be combined with other items in one order.