| 摘要 |
<p>Glass sands are produced by a method which comprises the steps of crushing glass articles to convert them into fine fragments so as to form glass fragments, then agitating finely crushed glass fragments to eliminate sharp portions while at the same time forming glass fragments into glass sands with a predetermined granular configuration, then sieving foreign materials which have been entrapped into glass sands formed in a granular configuration, while at the same time sorting out glass sands according to their grain sizes.</p> |
