We are the largest manufacturer of pipe thread tools in the China.Our customer service, product quality and breadth is demonstrated by our 70% market share in China's pipe thread tools market. We are a state owned enterprise and our employee team exceeds 600 professionals. Our factory was founded in 1970 and our manufacturing equipment and processes are state of the art.products include all kinds of standard and non-standard circular dies, hand & machine screw taps and series of combination thread tools sets according to Metric,German,Japanese,U.S&British System..The products are well sold in the United States,Canada,Britain,Japan some ten countries and regions since entering the world market in 1978