... PUNCHING roll forming machine 1,SUIT UPRIGHTS, BEAMS 2,Hydraulic Punch 3,Roller Feeder roll forming machine LMS ON-LINE HOLE-PUNCHING ROLL FORMING PRODUCTION ... Finished by six sides grinding and boring holes treatments.c. The material of main shaft is 40Cr, finished ... speed automatically. The hydraulic machine work separately.c. The control panel is composed by human-machine interface, button, switch, ...