We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for TCI roller bit for HDD rock reamer, roller cones for hole opener, 251mm roller cone bit, pdc cutter,TCI water well bit supplier. We guaranteed quality, if customers were not satisfied with the products' quality, you can return within 7days with their original states. The product will supply to all over the world, such as Europe, America, Australia,Uzbekistan, Plymouth,Lyon, New Zealand.Our factory is equipped with complete facility in 10000 square meters, which makes us be able to satisfy the producing and sales for auto part solutions. Our advantage is full category, high quality and competitive price! Based on that, our products win a high admiration both at home and abroad.