The high pressure double gear pump HGP-22A is available in 4 form sizes. Flows up to 108 lpm and high pressures up to 250 bar. Can be forward, reverse, forward and reverse.     Let's talk about the precautions for the use of double gear pumps: For hydraulic oil, please use ISO NG32~68 products with equivalent R&O type and wear resistance (viscosity index should...