Suzhou Douson Valve Co., Ltd is a specialist manufacturer of industrial pipeline valves. Top priority for the quality department is how to best ensure quality control and assurance in the production process. They do this by analysing the composition of the nickel and iron in the steel alloys that are incoming but also ensuring consistent quality throughout the production process.
Douson Valves has implemented strict technical standards for quality control as part of their design, manufacturing and sales processes. According to Li Yun, Laboratory Director in the Quality Department, “We carry out quality control against the API 6D standard which means inspecting the chemical composition of the incoming material samples.”