Shaanxi Rongle Petroleum Machinery Co.,Ltd is one of the best China friction plate manufacturers and suppliers,Website:://.snrle.com, and also a professional company and factory, welcome to import quality friction plate products from us.    Pneumatic clutch torque by friction plate to generate friction to achieve.    Brinell hardness of the friction piece is 20-40, when the temperature in the 100-250 degrees, the friction coefficient is 0.35-0.50.