... : Experienced in manufacturing the double head bending bar by hot forging the whole dody Double head bending bar:Experienced in manufacturing the wrenches by ... welding.Different sizes are available. sizesM12-M20M5 and upfeatureslow carton,high tensile,stailessstandardDIN,ANSI,BSW,AS,JS,ISO,ETC.finishbright,zinc ... threaded rods. If any questions ,kindly let us know. Double head bending bar