My Factory was founded in 1983, covers an area of 10000 square meters, has 32 years of experience in drilling tool.Advanced production equipment, strong technical force,is a manufacturer of Drill Rod,Core barrel,Drill Pipe Box,Drilling Coupling,Friction Welding Business philosophy:The quality of casting brand,the faith of promote the develop. Welcome to our company .We hope that with the new and old customers join hands, sincere cooperation.