HLD Petroleum Machines & Tools Factory is an independent incorporated enterprise which has been engaged in the professional development and production of different kinds of petroleum machineries and tools for many years. Boasting solid technical force, various senior technical talents specialized in electrical automatic control, hydraulic pressure, machine and computer as well as different kinds of mechanical processing equipments, mechanical processing of our factory has passed and obtained ISO9001: 2000 quality system certification and quality license for export products; With fixed assets up to 13 million Yuan, rich experience and strong capacity for design, manufacture and mechanical processing, our factory has been successively granted the product quality tracing inspection qualified unit of Huludao City and the title of " Consumer trustworthy product" in the Liaoning Quality Long March, with many products being awarded national patents.

Main products: series products including hydraulic screw-on machine, oil casing pressure tester, oil - well pump pressure tester, oil pipe cleaner, oil-well pump cleaner, oil- well pump packet cleaner, sucker rod cleaner, drill pipe straightening machine, point pressure straightening machine, oil casing straightening machine and tubing derusting machine.