... :Well Drilling Wellhead Equipment & Christmas Tree (API 6A Series) Working pressure: 2000PSI~20000PSIWorking Medium:oil,natural,gas,mud ... H2S,CO2Working temperature: -46°C~121°C(Class LU)Material class: AA,BB,CC,DD,EE,FF,HHSpecification ... including H2S,CO2Working temperature: -46°C~121°C(Class LU)Material class: AA,BB,CC,DD,EE,FFSpecification level: ... -2 Wellhead Equipment & Christmas Tree (API 6A Series)