... Slip type casing hanger Dia:20",13 3/8",9 5/8" Type:G,W,WD,WE Casing hanger is classified into ... i.e.the threaded(mandrel)and the slipped,slip scasing hanger consists of G,W,WD,WE and other tupes, ... WD hanger is applicable for connection of casing head and surface ... the casing fast in use of outer force, W hanger adopts self-weight energized sealing structure and WE&G ...