... ,50HZ 3.Rated pressure:high 63Mpa,low 2.5Mpa Double Action Electric Hydraulic Pump ZCB-700AB-2 Item No.ZCB-700AB ... Low pressure use plunger type, improve the effective pressure;l Dual active, electromagnetic wired remote control , can solve the problem of ... overload protection device, avoid overpressure and damage the equipment;l Dual active, use three-potential four-way valve, can be forward ...