Xianyang North West Medical Instrument (Group) Co., Ltd. was founded in 1965 as the first professional dental oral instrument manufacturer and the sales agency in China. Being exclusively dedicated to the research and development, sale and service, we have made many remarkable achievements in medical oral instrument field. Sinol is one of our core brands. Sinol dental units and handpieces are our prominent products. In addition, we offer technician products, dental teaching simulator systems, sterilizing products, dental image systems, oral multimedia teaching systems, electric suction...