HHF is mainly engaged in the research and development, production, sales, and service of petroleum equipment and large precision forgings. It is one of the professional manufacturers of drilling tool stabilizers in China. The drilling tool stabilizers, non magnetic drilling tool stabilizers, drill collars, non magnetic drill collars, petroleum drill pipes, mining drill pipes, reamers, pump heads, as well as various wheel shafts, ship shafts, steam turbine shafts, motor shafts, cast pipe molds, etc. produced by the company, are sold well in more than 20 countries or regions such as the United States, the United Kingdom, France, Italy, Austria, Russia, the Middle East, South Africa, Brazil, Singapore, etc. The company's products are highly trusted and praised by customers for their excellent quality, reasonable prices, good reputation, and comprehensive after-sales service.