Tianhe main products: drill collars, drill pipes, hydraulic jar testers, hydraulic bucking units, down hole motors，shock absorbers, jars, different kinds of drilling tools, work-over tools, cementing tools, coring tools, fishing tools and fitting, BOP automatic cleaning systems and other equipments, in which, many self- researched products have obtained state grade patent awards, bucking unit and jar tester have got state grade certificate for new focus products.
