Hejian Solidkey Petroleum Machinery Co,.ltd 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 .Hope we can establish business relationship with you.The profile of our ...View More