Tianhe Oil Group Co., Ltd, in northeast of China, specialized downhole tools manufacturer, biggest producer of drill collar and HW Drill pipe in China, producing 5400 joints every year. Tianhe" brand products has high reputation in Indonesia, India, Russia, Egypt and so on. Our products has reliable quality & reasonable price.

Main products we Manufactured: drill collar, HWDP, Kelly, stabilizer, all kinds of fishing tools, hydraulic drilling jars(assure 1500 work-hours), hydraulic bucking unit( Chinese Patent product), downhole motor tester, jar tester, all kinds of subs.