1. Working pressure: 2000-15000PSI 

2. Material grade: AA-ff 

3. Normial diameter: 2 9/16″-5 1/8″

4. Temperature grade: LU/PU 

5. Specification grade: PSL3-PSL3g 

6. Performance grade: PR1/PR2

Wellhead equipment and Christmas tree are essential for oil and gas exploitation, compassed of casing head, tubing head and Christmas tree, used to connect casing string and tubing string, and seal the annular spaces between all casing at all layers and between pipelines. In addition, it can be used not only to control wellhead pressure and adjust oil/gas wellhead flow, but also for special operations, such as acid fracturing, water injection and testing, etc.All our products are produced strictly according to the international standard of API and the domestic petroleum, petrochemical industry standards; carrying out test for products before delivering to ensure their quality. Through these years of manufacturing practice and clients' using feedback, our products have reached the leading level in terms of applicability,safety and reliability. Today, our products not only sold to domestic oilfield in North China, Daqing, Jilin, Changchun and so on, but also exported to France, Canada, India, Kazakhstan, Turkey, Chile, Argentina, Egypt, Sudan, Iran, UAE, South Korea, Ukraine, Russia, Uzbekistan, Singapore, Australia and so on.