... drilling,marking of connection plate tower and steel structure CNCHydraulic Punching and Marking Machine Main frame is fortified ... can be precessed up to 50mm. Self-correcting hydraulic clamp,Automatically adapts to the inequalities of workpiece, ... temperature,liquid-level.Adopting imported international famous brand of hydraulic solenoid valves. Parameter List ModelCJ100Punching force (kN)1000Marking ...