Zingwe zopotoka, makina opindika a chingwe ku 2 ndi ulusi wopitilira 2 wa ulusi palimodzi, malingaliro otsogola komanso owoneka ngati atatu, ofanana ndi kupindika, komwe kumadziwikanso kuti kupotoza chingwe, chingwe chopotoka kudzera muzopangira, kuchuluka kwa zidutswa, kuphatikizika kwamtundu, amatha kupanga makulidwe a 0.5-10MM a pro zozungulira ...
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