The KCB series ordinary gear lubrication pumps mainly uses in in each kind of mechanical device lubrication system to transport the lubricating oil, is suitable to the transportation viscosity in 10. E (75C.S.t) below, the temperature has the lubricating ability in 300 ℃ below fuel oils. The stainless steel gear pump, may transport the non- lubricating ability fuel oils, the drink, the low corrosive liquid. Uses for parts the copper gear to be possible to transport the low liquid, like gasoline, benzene and so on. This series pumps besides the disposition ordinary electrical machinery, but also may need to dispose the same specification according to the user the explosion-proof electrical machinery.