The registered address of hebei guangcheng mine machinery ltd. Is the changkung village of dubashi township, kaegi county, hebei province. The registration body is the chang county market supervisory authority. The legal entity is represented by junxia hu and operates from the production and sale of spare parts for coal mine support valves, spherical cut-off valves, three-use valves, aqueous guns, direct connections, three-channels, k-style links, combination-manufacturing valves, one-way locks, two-way locks, safe valves, emulsion pump spares, high-pressure rubber tubes and aggregates, metal hoses, rubber impurities, plates, conveyance belts, and spare parts for mines** (the project can be operated only with the approval of the relevant department in accordance with the law)