... guide clamp wheel,fixture motor). b,hydraulic motor 4 set c,hydraulic contral valve 1 sets ( REXROTH type) d,oil tank ... ,weldment,the main pushing board are welded board c,screw,chain,standard parts and bearing are national standards d,the guider is ... the material and the size of the bend you would make with the machine) high performance medium frequency heating hydraulic welded elbow forming machine