Roller cheni inoita basa rakakosha mumaindasitiri mazhinji, kusanganisira kugadzira, kurima uye zvekufambisa.Ivo vanozivikanwa nekuvimbika kwavo, kusimba uye kuita zvakasiyana.Kazhinji, roller cheni dzinoshandiswa kufambisa simba kubva kune imwe inotenderera shaft kuenda kune imwe, ichivaita chikamu chakakosha che ...
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