1 Manual Lubricating Pump. The pump can be combined with a throttling distributor to form a centralized lubrication system. It is suggested that the oil viscosity is N20-N500. When the handle is pressed by hand, the piston moves up and down under the action of a lever, which is a process of oil absorption; when the handle is loosened, the piston moves downward under the action of the spring force, and is an oil discharging pro.
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