It comply with IEC standard, are newly-designed unified series in China, featured in small size, light weight, low vibration and easily-- starting-up, high efficiency and reliability. They are suitable to be used where there is no inflammable, explosive or corrosive gas, or where there is no special request in machines, such as metal cutting machines, pump, blower, transportation machines, beater, agriculture machines, food machine, etc and other derived product design is available if special request were offered by users.