Hydraulic ironworker in our company has three types with different punching pressures. 

Three types: ordinary type, E-type, L-type.

Ordinary type can only be punched or sheared without cooling system.

E-type can only be punched or sheared but have cooling system.

The L-type can be punched and sheared at two different positions at the same time and have cooling system, which can decrease labour power and increase efficiency.