... saw pipes, oil pipes, ERW pipes, seamless steel pipes,elbow,reducer,tee,caps,flange,tube etc.. TYPES: elbows, seamless ... , oil pipes, ERW pipes, seamless steel pipes,elbow,reducer,tee,caps,flange,tube etc...1. Butt weld ... Elbow 45degree & 90degree Long Radius &Short Radius2. Butt weld ... Caps from 1/2 inch to 72nch5. Butt weld Bend 2D 3D, 4D, 5D etc.6.All kinds of ...