(1) Kuonekwa kwevhavha yebhodhoro: kuumbwa kwakazara, chimiro chakazara, hapana shrinkage yakajeka, bubble, burr, defect, yunifomu ruvara, uye hapana kukuvadza kune anti-kuba mhete yekubatanidza bhiriji. Iyo cushion yemukati ichave yakati sandara isina eccentricity, kukuvara, tsvina, kufashukira uye warpa...
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