Usati washandisa muchina wekugadzira nati, zvakakosha kuti uteedzere mamwe matanho ekuona kuchengetedza, kunyatsoita, uye kuita kwakakwana. Ichi chinyorwa chinokurukura zvakakosha kufunga uye matanho anofanirwa kutorwa nevashandisi vasati vashandisa nut welding muchina kudzivirira tsaona, kuderedza zvikanganiso, a...
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