HEIJINGANG.HEIJINGANG was established on April 30, 1999, with its registered location in Wangcheng District, Changsha City. The company occupies an area of 110,000 square meters, featuring 50,000 square meters of production facilities and employing over 700 staff members. It possesses nearly 1,000 sets of processing, R&D, and testing equipment for manufacturing rock drilling machinery and pneumatic tools. The company independently designs and manufactures the following products: domestically advanced high-pressure pneumatic down-the-hole hammers; Various down-the-hole bits; eccentric, concentric, slider, and dual casing drill strings for casing-follow drilling in overburden and loose rock formations; various threaded drill bits; drill shanks and coupling sleeves; new-generation water well and geothermal drilling rigs, surface blasting hole drilling rigs; drill pipes, couplings, and other drilling accessories. With extensive R&D and manufacturing expertise, the company employs premium raw materials, advanced production techniques, and rigorous quality control to deliver high-performance, reliable products. “HEIJINGANG” brand drilling tools enjoy nationwide popularity due to consistent quality and superior performance, and are exported in bulk to over 50 countries including South Africa, Brazil, France, Australia, Canada, Malaysia, and South Korea, earning widespread customer acclaim. Primary product categories include: Drilling Tools, Drilling Rigs, Raw Materials.