Hydraulic clamp is a kind of clamp type hydraulic tool applying Pascal principle, which is divided into several categories, such as separate/integral cable hydraulic clamp, mechanical cable wiring clamp, steel core cable hydraulic clamp, manual hydraulic clamp, electric hydraulic clamp, etc. Integrated design of integral hydraulic tong function module and power module, small size, light weight, easy to carry, suitable for temporary small operations such as going out for repair. The function module of the split type hydraulic tong is separated from the power and connected to the power through oil pipes and other accessories. It can be either manual or electric, which is very flexible. Hydraulic crimping pliers are used for various crimping operations, such as copper aluminum terminal crimping, rivet riveting, etc; Hydraulic cutting pliers are used for cutting various materials. When hydraulic cutting pliers, such as steel bars and cables, are generally used to select molds, they should be used according to the needs of the mold.