Jing Zhang

Hilong Group of Companies Ltd. engages in the manufacture and sale of oilfield equipment. Its products include pipeline coatings, welding wires, fluxes, petroleum continuous pipes, gas filing stations, heat shrink sleeves, drilling equipment and accessories, and thread protectors. Its services include petroleum and natural gas development, anticorrosive treatment of pipes, and related technical services. The company was founded on January 14, 2005 and is headquartered in Shanghai, China.

Hilong Group of Companies Ltd. engages in the manufacture and sale of oilfield equipment. Its products include pipeline coatings, welding wires, fluxes, petroleum continuous pipes, gas filing stations, heat shrink sleeves, drilling equipment and accessories, and thread protectors. Its services include petroleum and natural gas development, anticorrosive treatment of pipes, and related technical services. The company was founded on January 14, 2005 and is headquartered in Shanghai, China.