... G,W,WD,WE type. Slip Casing HangerProduct SpecificationCasing hanger is classified into two kinds, i.e. 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 surface ... fast in use of outer force, W hanger adopts self-weight energized sealing structure and WE & ...