Spontaneous wells and mechanical recovery wells are important equipment used to exploit oil and gas and test oil and gas after completion. <br>
It can control the pressure of oil and gas wellhead and adjust the flow of oil and gas wellhead.

For working conditions with high content: the body adopts cladding welding process, which meets the requirements of HH level wellhead.
The pressure control part is made of nickel base alloy 718 material.
The metal sealing ring is made of nickel-based alloy 825.