... ,DD,EE,FFPressure:2000~20000PSIClass:Drill Thru EquipmentAbout this product:Wellhead equipment and oil tree is an important oil and gas ... tubing the annular space between, and control production wellhead pressure and regulate oil (gas) wellhead flow, can also be used for acid ... productsAA,BB,CC,DD,EE,FFApply MEDIAOil, gas, mud, etc API 6A wellhead christmas tree