As BMC & SMC are characteristic of excellent electrical property, good dimensional stability, corrosion resistance and weather fastness, they are widely applied in the field of electronics and electrical appliance as well as extreme environments, especially in moulded case circuit breaker, air switch, plastic package motor, four-way valve, motor support and structural parts of electronic appliances. BMC & SMC have better cost performance than thermoplastic materials and other thermosetting materials, are safer in use and have easier manufacturing process.