1、The technical parameters, construction, the friction disc and controlled disc of the GP120-10 disc vacuum filter are presented.

2、DZD1 Brake are Singledisc brakes, friction disc non-asbestos lining/ steel.

3、The test apparatus to friction disc of wet clutch in automatic transmission can change some test parameters, such as sliding velocity, turning inertia, normal applied force and lubrication volume.