... specification level:PSL1~PSL3G Material class:AA,BB,CC,DD,EE,FF PR1~PR2 Model:WellheadMaterial:AA,BB,CC,DD ... ,EE,FFPressure:2000~20000PSIClass:Drill Thru EquipmentAbout this product:Wellhead equipment ... ,U,VPerformance requirements levelPR1,PR2Material-level productsAA,BB,CC,DD,EE,FFApply MEDIAOil, gas, mud, etc API 6A wellhead christmas tree ...