1.Digital controller, economy. 2.CE, ISO, CQC certificate. 3.High quality with good price. 4.OMG hydraulic system Main structure1. Holistic welding structure treated by annealing.2. Manually or electrically adjust the clearance between upper and lower 4 edge blades.3. Hydraulic-driven upper blade carrier moving downward and linearly.4. Time relay controls shearing stroke, shearing angle adjusted ...