Zhejiang Yongkang Jindu Industrial & Commercial Co., Ltd. is a professional enterprise specializing in diamond core drill and diamond core bits. Now we have become one of the biggest manufacturers in this industry with our factory covering an area of 50,000 square meters. Equipped with advanced facilities and having rich technical forces, we can research and develop new products by ourselves. Our products are widely used in the fields of construction, installation, communication and quality inspection. We have passed CE and CSA certification. Exported to all over the world, they have won...