... 3-15times/min HRGF-20 steel bar bending machine Basically technological parameter:Model No.HRGF-20 Bending dia. rangeRound steel: φ20mmTwo-grade ... steel, screw thread steel, flat steel, angle steel and square steel, etc. The machine is very small, solid, self-lubrication, ... degree and 135 degree two footswitch, change angle freely.4). Angular standard: adjust angle range is from 0 to 360 degree, ...