Detailed Product Description clutch button,auto clutch button,ceramic clutch buttons: 1.Good price and quality clutch button,auto clutch button,ceramic clutch buttons: 1.Good price and quality 2.High friction coefficient 3.1600 types4. MIBA NO.:GBK187.480 7650807 GBK197.500 7650811 clutch button,auto clutch button,ceramic clutch buttons,Auto Clutch Button:1.Material: Brass based 2.heat-resisting: ...