A leading patented product developed by Huafu, the Hollow sucker rod has been largely successful at resolving many problems encountered during the extraction processes of both heavy and super heavy crude oil. The main purpose of the product is to prevent paraffin deposits from forming inside the tubing shell. This in turn, allows for easier crude oil extraction while ensuring an unobstructed and continuous flow from below ground to surface level.

To date, Huafu has commissioned the installation of 950 units in Liaohe and Shengli Oilfield locations and all units have generated superior results.