CHENGXIN VALVE.Founded in Hebei Province in 2005, CHENGXIN VALVE (CHX) is a company that integrates manufacturing and sales, specializing in medium- and low-pressure valves and municipal ductile iron manhole covers. The company occupies an area of over 30,000 square meters, employs more than 220 staff members, and operates three automated molding production lines with an annual production capacity of 15,000 tons. The company places great emphasis on product R&D. Starting with just a handful of product types, it has grown into a professional supplier offering 30 major series—including national standard gate valves, globe valves, butterfly valves, and ball valves—with over 2,000 specifications, as well as foreign standard series products compliant with German, Russian, American, and British standards. Its products are recognized by domestic and international customers for their reliable performance and durability, and have been exported to Russia, Pakistan, Dubai, and many other countries and regions. The company operates a modern physical and chemical laboratory equipped with comprehensive testing facilities and has obtained ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications.