JINLONGDA.JINLONGDA was established on January 16, 2004, with its registered location in Jianhu County. It is a high-tech enterprise integrating independent R&D, design, manufacturing, sales, service, training guidance, and operations. The company's primary business operations encompass multiple development activities including scientific research, development, design, manufacturing, processing, sales, maintenance, and technical service guidance. Galvanizing and electroplating services are provided for power plants, airports, and highways, while petroleum products serve oilfields. The company has designed all its products—wellhead equipment, blowout preventers, casing heads, choke and kill manifolds, valves, etc. into integral forged, weld-free flat valves. This eliminates the need for wedge valves, extends product lifespan, and doubles safety factors. Particularly for wellhead equipment and wellhead assemblies, this enhances resistance to seismic activity, corrosion, sulfur exposure, tensile stress, pressure, and extreme temperatures, fully meeting user requirements and production demands. Primary product lines include: Wellhead assemblies and Christmas trees Casing heads and casing hangers Manifold series Blowout preventer series Valve series Spare parts series