... Casing Hanger,slip and mandrel with certification, G,W,WD,WE type. Slip Casing Hanger Product SpecificationCasing hanger is classified ... the threaded (mandrel) and the slipped; slip casing hanger consists of G, W, WD, WE and other ... types, WD hanger is applicable for connection of casing head and ... in use of outer force, W hanger adopts self-weight energized sealing structure and WE ...