EDLONG.EDLONG was established on September 26, 2007, with its registered location in Jianhu County, Jiangsu Province. The company has a registered capital of 116.6 million yuan, occupies a site area of 100,000 square meters, and boasts a building area of 60,000 square meters. It operates as a modern management enterprise. The company primarily manufactures high- and medium-pressure series flat valves, choke valves, safety valves, plug valves, single-flow valves, mud valves, ball valves, forged flanges and pipe fittings, as well as various oil (gas) wellhead equipment, casing heads, tubing heads, diversion fracturing manifolds, kill manifolds, choke manifolds, drilling fluid manifolds, drilling and production accessories, pneumatic pressure testing pumps, flow control boxes, blowout preventers, and surface blowout preventer control systems. The company customizes drilling and production accessories to meet specific user requirements. Products are manufactured in strict compliance with ISO-DF, American ANSI, API, Chinese National Standard GB, and Petrochemical Standard SY specifications. They are widely applied in industrial piping systems for petroleum, chemical, metallurgical, power plant, and engineering projects. Core products include the aforementioned valves, manifolds, wellhead equipment, and control devices.