Jinghong Petroleum Equipment Corporation. We take this opportunity to introduce ourselves as one of the leading manufacturers of Oil Equipment in China. After more than 10 years of development Jinghong enterprise has 4 core product lines: Top Drive Drilling System, PC Pump & Ground Driving System, Series of Down-hole tools and Solid Expandable Tubular Machining and Engineering service. Refer to technical innovations Jinghong enterprise has gained 26 Chinese and international patents including 2 invention patents. Thanks to the above fruitful working, Jinghong enterprise passed through ISO9001 quality system certification in 2002. You may know us more from our website www.jh-pm.com . Thank you!