How to make car glass water

When we use the car, we can't do without a lot of chemical reagents, such as when cleaning the glass, when cleaning the seat, when cleaning the car, when the wheel is rusting, etc., generally need this time Cleanser. Then you must have used glass water, but would

Arc gear pump common fault and maintenance methods

First, the common fault and maintenance methods 1) Symptom: The pump can not discharge
Failure reasons: a, the opposite direction of rotation; b, suction or discharge valve is closed; c, no inlet or pressure is too low; d, viscosity is too high, the pump can not bite materi