... .used for electric hoist,LH,QD,MH Model crane 4.manufature The coiling block is divided into ... electric hoist,trolley,LH ,QD,QZ,MH Model crane.These below are the main features of coiling block ... of products◊5.This coiling block is suitable for crane hoisting institutions such as electric hoist,it has ... different kinds of film.The winding manderl will be lifting mechanism of ...