WUXI GUANGSHA DIAMOND TOOLS CO., LTD . was founded in Taihu lake to produce drill bits, core bits, drill pipe, core barrel, wire line tools, and diamond saws. With advanced equipments, first class experience in management, masterful techniques, unique formula, perfect testing and comprehensive service, our products are famous both at home and abroad. Taking credit as the first as well as ensuring quality always is our tenet. We will try our best to develop and produce high quality products to meet user&＃039;s requirements.