Several steps are required in the production of a glass. First, the materials which include sand, soda and limestone are reduced to powder. After the coarse parts are sifted, they are heated within a furnace of high temperature for five or six days. The result of the heating process, which appear in liquid form, will be sent to two places. The first place liquid will be shaped by rollers and later be cooled to form a flat shape. This process will produce the a plate glass. The second place liquid is put in a mould and be blown by air. The liquid is then cooled and removed from the mould when it is cool enough. This process is meant to create a bottle glass. These are the basic steps for producing the two type of glasses.
Daniel
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