The registration address of hebeilong coal mine mechanics ltd. Is located in the south side of guangzhou street, on the east side of the king king road, with the registration authority of the city's market supervisory authority, represented by the legal person zhu bonglong, and includes 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, safety valves, emulsion pump spare parts, high-pressure rubber tubes and aggregates, metal hoses, rubber impurities, cavities, beads, conveyor belts, and mineral accessories**