... ,better approachability design,easy to repair.3.Average effective pressure,power per liter,torque perliter are good.4.Adanced P7100 pump ... oil-sealing ring technique and seal technique for piston ring,low oil consumption.6.Optional eletronic speed governing pump.7.42CrMo ... ,monitor and self-protect,and safe. BEST SELLER 300KW DIESEL GENERATOR SETS