YD aina chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma

YD chuma bomba hanger inatumika kwa lifting usawa ya chuma bomba; mzigo ni 0 ~ 1 tani; Kutumia chuma cha chini cha kaboni; matumizi ya makundi mawili katika kazi lifting; Wakati wa mchakato wa lifting haipaswi kugongana hanging; Matumizi ya overload ni marufuku.