Ƙwaƙwalwar girder gantry crane nau'in crane ne wanda ya ƙunshi gada guda ɗaya wanda ke goyan bayan ƙafafu A-frame biyu a kowane gefe. Ana amfani da ita don ɗagawa da motsa kaya masu nauyi a cikin muhallin waje, kamar yadudduka na jigilar kaya, wuraren gine-gine, ɗakunan ajiya, da wuraren masana'antu...
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