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