Solidkey Petroleum Machinery Co., Ltd. established in 1990, essential products are Tricone bits, single cone bits, hole opener, drag bit, PDC bits, stabilizers, interrelated drilling equipments.There is 30 years experience on well drilling by advanced technology and equipments, and establish a long-term business relation with customers from Africa and the Middle East�Europe and America. Advanced technology and equipment, excellent technicians, and scientific management will guarantee our products have superior quality.Our products have been command a ready market in more than 40 countries and regions, Our purpose is to supply the best quality products at the lowest and possible prices on the premise of honesty and trust worthiness.