Casing head is used to fix the drilling well and connect the casing string under the well. It can reliably seal and control the annular spaces between pipes, and it is an important part of Wellhead. Casing head is designed with a 45° Circular bead, used to support the weight of casing string transmitted by casing hanger, and BT type secondary seal can be used for the bottom. 
Jianhu Jielin Petrochemical Machinery Co., Ltd. is located in Jianhu Industrial Park, , Jiangsu Province, known as a land flowing with milk and honey. It is a modern large-sized enterprise specialized in researching and developing, manufacturing and selling various oilfield machines and spare parts. Our company has been authorized by China Classification Society for application of ship products and accessories as well as certificates of API-6A, 16A and 16C, etc. We mainly produces API 6A high and middle pressure valves, with the technical performance being that nominal working pressure is PN2.5-105MPa and nominal diameter is DN3-1000mm; in addition, our company also manufactures API 6A wellhead equipment for oil (gas) extraction, choke and kill manifold, mud manifold, drilling accessories and blowout preventer, etc.
Our company always adheres to the concept of "management enhancement, quality emphasis, market exploitation and brand establishment". With quality products, favorable prices and premium services, we sincerely seek cooperation with friends from home and abroad.