Yuyao Donghai Cutting Tool Factory is located in Huangjiabu Town, Yuyao City, Zhejiang Province. We are between Ningbo and Hangzhou. Our transportation is very convenient and economy is developed. Our factory has ten years' experience in carbide rotary burrs. We manufacture our DongRen (DR) brand series products of rotary burrs according to the rules of "GB-9206-9217-88". Our specification is complete product quality is superior compared with domestic and foreign similar products. Our company ...