Ukuhlola Okuvamile Ukuhlolwa kwansuku zonke kubalulekile ukuze kuqinisekiswe ukusebenza okuphephile nokusebenza kahle kwe-pillar jib crane. Ngaphambi kokusetshenziswa ngakunye, opharetha kufanele benze ukuhlola okubonakalayo kwezingxenye ezibalulekile, okuhlanganisa ingalo ye-jib, insika, i-hoist, i-trolley, nesisekelo. Bheka izimpawu ze...
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