How To Make Glass

Products of glass are made by several steps. First, several kinds of raw material, such as sand, limestone, and soda, are heated with high temperature inside a furnace. Actually, the main material of glass is silicon. Sand, limestone, and soda are used as basic materials because they contain silicon. Second, after all basic materials are melted and blended well, the liquid glass is directed into two different direction. One direction is to make plate glass and another to make printed glass, such as a bottle. In making a plate glass, liquid glass is placed in another furnace. From this furnace, liquid glass is directed to a roller machine then rolled and become a plate glass.
In the bottle glass production, little part of liquid glass is penetrated in to a removable mould shaped bottle. Then, some air is blown into the mould upon the liquid glass so the glass is blown and it sticks to mould wall. Because the glass follows the shape of mould wall, it then forms a bottle; like the printer mould shape. After glass become solid again, the mould is removed and we get a bottle glass.

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Good work, thanks