The 4 column hydraulic press here at Huaxia adopts the integrated system of a cartridge valve to provide the advantages of reliable operation, long service life, low hydraulic impact and reducing the connecting pipe and leakage point. It features an independent electrical control system and uses centralized button control, which can be operated in manual/semi-automatic or manual/semi-automatic cycling model. It is mainly used for sheet metal stretch forming, flanging, bending and punching.