1.Nyuma yimisumari imaze gukorwa, irasizwe.Ibikoresho byakoreshejwe ni: imashini isya.Banza ongeramo ibishashara n'ibishashara bya paraffin, hanyuma umusumari mumashini isya.Imashini isya ifata igishushanyo mbonera, umusumari hamwe nigituba, ibishashara bya paraffin munsi yumurimo wo guterana amagambo, ikina t ...
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