Welcome to LangFang Hengyu Tool Co. Ltd. We are the largest manufacturer of pipe thread tools in the world; conveniently located in Lang Fang city just 90 minutes expressway drive south east from Beijing Capitol Airport; 1/2 way between Beijing city and Tianjin city and only 45 minutes expressway drive from China's largest northern seaport at Tang Gu.

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.

Now that China has joined the WTO we are aggressively expanding into overseas markets including North and South America, Europe and others. In China we sell directly to end user customers. In international markets we sell only through other pipe thread tool manufacturers and distributors.

Our Lang Gong brand series of pipe thread tools comes in 11 different classes, 100+ varieties and 1,000+ specifications for varied applications including valves, nozzles, construction reinforcing fitters, oil and gas industry applications, fire protection equipment, liquid natural gas, pressure vessels, and many others.

Our pipe thread tool products include taps, extruding taps, chasers, angle inspection instruments, casting production lines for a variety of malleable applications and others.

In addition to our extensive standard order goods, we can design and manufacture virtually any special order pipe thread tool products to meet your unique specifications.