Yancheng Yuyang Petroleum Machinery Co., Ltd., a professional manufacturer of oil drilling and production equipments and valves, is a member supplier of China Petroleum Material & Equipment Corporation. Our company has been registered to ISO 9001 and licensed by American Petroleum Institute to API 6A, API 16C, API 16A.We have many specialists, who have worked for many years in the petroleum machinery industry and accumulated much experience in the design, manufacture, inspection and testing, marketing and service of the petroleum machinery. We have all kinds of process equipments for the cold-working and heat-working, as well as complete inspection and testing facilities. We design and manufacture the Christmas trees, casing heads, choke and kill manifolds, drilling mud manifolds, high-and-middle pressure valves, and components for oil drilling and production in accordance with API standards, ANSI standards, GB national standards and SY industry standards. Our products are widely used in the petroleum, chemical, metallurgy and power station industries.  We have advanced technology and equipments and huge technical force. Always adhering to our business principle of strengthening business management, improving product quality, creating a brand name and striving for a top-ranking manufacturer, we scrupulously abide by the contracts and pay attention to business reputation. The customers from home and abroad are warmly welcome to our company for guidance and cooperation.