According to statistics from the production and technical department, as of April this year, the company has developed and manufactured more than 40 sets of large and medium-sized special-purpose valves for customers with various special requirements. All products have passed customer acceptance at the first attempt and received favorable market feedback. Facts have proved that the company is now capable of developing various large and medium-sized special valves. The improvement of the enterprise's comprehensive development capacity will lay a solid foundation for providing more high-quality products to more customers. We believe Yongsheng products are definitely among the preferred products worthy of customers' trust, and Yongsheng will become an indispensable brand in the industry. (Photo 1 shows a large-diameter gate valve; Photo 2 shows a large oxygen control valve suitable for large and medium-sized smelting enterprises; Photo 3 shows a quick shut-off valve for coke oven gas working conditions.)