Tianjin RHJC Scientific and Technological Limited, was founded 1998, is a high-tech enterprise in the field of micromotor grinder manufacturing. It is located in Xiqing economic development area, Tianjin city, China. We have more than 20 years experience in developing and manufacturing micromotor grinder, we have three core competitiveness products: dental micromotor, nail drill and jewellery& dental lab handpiece. Our high quality micromotors with high performance and low failure rate have attract customers worldwide, such as: America, Italy, Russia, Korea, Japan, Germany, Spain, Brazil, Turkey, Mexico, India, Iran, South Africa.