... drums auto-production line, since put in to production in 1985, our products have been ... hydraulic driving. We have new products combined machine to form the corrugation and wedge-shaped on the ... step is from de-coil, leveling, cutting to painting spray out put. Our production line can ... PLC, hydraulic driving, servo motor to control the measurement, the cutting precision can reach to≤0.5mm in length, ...