The case

Friction material is a kind of component material used in power machinery and relying on friction to achieve braking and transmission functions. Any mechanical equipment and all kinds of moving vehicles must have a brake or transmission device, and the friction material is a key component on this brake or transmission device, which enables the mechanical equipment and various motor vehicles to work safely and reliably 

Electronic water pump is a pump with an electronic control drive unit. It is mainly composed of three parts: overcurrent unit, motor unit and electronic control unit. With the help of the electronic control unit, the working status of the pump can be adjusted freely, for example: control the start/stop of the pump, flow control, pressure control, anti-dry running protection, self-maintenance and other functions, and can control the pump through external signals.

A power steering pump is a component of a vehicle's power steering system that uses hydraulic pressure to assist in the steering of the vehicle. The power steering pump is typically driven by a belt connected to the engine and is responsible for generating hydraulic pressure that is used to help turn the wheels.