Recently, Jinbin Valve has completed the production of a batch of closed blind valve exported to Italy. Jinbin Valve for the project valve technical specifications, working conditions, design, production, inspection and other aspects of the research and demonstration, to determine the product technical plan, from drawing design to product processing and manufacturing, process inspection, assembly pressure test, anti-corrosion spraying. Because the customer's working condition is 7m from the valve to the operating platform, the technical team of Jinbin proposed a bevel gear and chain operation scheme for this situation, and won the recognition of foreign customers. Through continuous communication with customers about size, material and other requirements, Tsumahama customizes according to customers' requirements. From the start of the project to the smooth delivery, all departments cooperate closely to strictly control the quality, strictly control the key links of technology, quality, production, inspection, etc., to unite and unite, and successfully create a high-quality project. After the completion of the production of the valve, through the pressure test and the opening and closing test, completely sealed without leakage.