Zhengzhou Smile Dental Equiment Co., Ltd located in Zhengzhou city in China.that specialized in dealing and manufaturring of dental unit,oilless silent air compressor, x-ray unit and other dental equipment&dental materials. our factory has high class workshops,advanced porduction test equipments and team of skilled staff. The OEM service is welcomed. We would be pleased to hearing your comments about our products and about the opportunity to establish a business relationship. Our goal is to achieve our commitment  providing best quality products to our customers with best services and best prices????????