We�ve been a leading manufacturer of the diamond tools products since our establishment in 1974.Our products line consists of products used in the construction and stone industries. We manufacture high quality diamond core drill bits including crown type and saw blade for the cutting of concrete, asphalt,walls and stone as well as grinding cup wheel etc.. Customized diamond products are also available upon request. Especially, We gained the reputation to the best quality and competitive price at the field of core drill bits in the the World market. Our extensive experience in the field allows us to satisfy any order or customer, large or small, under any deadline. And Our effort for R&D is constantly working to develop better and more competitive products for our valued customers. In other words, Our policy is that we�re never satisfied until you are.