... Machine parts Steel C Z PURLIN ROLL FORMING MACHINE 1. FEATURES: It is taking the advantage of manual non- ... between holes, required purlin quantity, etc., is set on touchable screen.3. COMPOSITION: It is composed of decoiler, material guider, ... leveler, 2-station hydraulic puncher, hydraulic cutter, quick-changed-roller roll-former, electronic control system, hydraulic system, etc.4. DRIVEN METHOD ...