In the process of making glass, several procedures are needed. First, sand (that contains of silica), soda, and limestone are put together into a furnace. Having heated in the furnace, those things turn into glass liquid. This glass liquid flows through a pipeline. Later, the flow is divided into two pipelines to produce two kinds of products, plate glass and bottle glass. To make plate glass, the glass liquid is delivered into some roles to be pressed. While in bottle glass production, the glass liquid is sent into removable moulds and some air is also blown into, then the glass liquid is pressed. When the temperature gets lower and this two kinds of glass get harder, they are ready to be used.
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