Hejian Solidkey Petroleum Machinery Co., Ltd. is located in the Oil Field Huabei, south of Beijing 200KM. We have set up a perfect marketing and service network in China for several years.We specialize in rock bits, PDC bits, drill pipes and drill accessories in general. All our products are in line with API and ISO standards.Our products have reliable quality and competitive prices. Our professional team, consisting of engineers and technicians, will follow the process of production, transportation and after-sales service. Welcome to visit our company to cooperate.