Ruian Changti Commutator Co., Ltd. is a joint-stock enterprise, professionally engaging in designing, developing and producing all kinds of groove, hook and flat-shape commutators for series-excited motor and DC machine. Since founded, with the experience and perseverance in manufacturing for more than 10 years, it absorbs distillate of domestic and foreign modern manufacturing technology and combines with the advanced modern scientific management, so the annual output is up to tens of million pieces and the products are sold far to Europe, America and Southeast Asia.