The drawing illustrates the production of plate glass and bottle glass.

In general, both plate glass and bottle glass undergo three stages to be made, including the same first stage.

At the initial stage, a mixture of raw materials consisting of sand, limestone and soda is poured into a furnace. It is heated by the temperature at 1700 degree Celsius until it becomes molten glass. The hot liquid glass subsequently flows through a pipe to a tank, which has a valve attached. When this valve is open, molten glass flows through rollers, which are responsible for flattening glass out. Consequently, plate glass is created.

When it comes to bottle glass, molten glass is pumped into a mould instead of a tank in the process of making plate glass. Air is spontaneously pumped into this mould to compress glass as long as this mould is completely empty. After cooling process, this mould can be removed from bottle glass as can be seen from the diagram.


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The drawing illustrates the production of plate glass and (Wrong word order.) bottle glass.

In general, both plate glass and bottle glass undergo three stages to be made. , including They share the same first stage.

At the initial stage, a mixture of raw materials consisting of sand, limestone and soda is poured into a furnace. It is heated by the furnace up to a (We do not heat by temperature. We heat by an electric coil, a fire, or a heater.) temperature at of 1700 degrees Celsius until when it becomes molten glass. The hot liquid glass subsequently flows through a pipe to a tank, which has a valve attached. (The diagram does not show a valve. Where did you get that information?) When this valve is open, molten glass flows through rollers, which are responsible for shaping it into flat glass as it cools. flattening glass out. Consequently, plate glass is created.

When it comes to bottle glass molten glass is pumped into a mould instead of a tank in the process of making plate glass. Air is spontaneously (wrong word) pumped into this mould to compress glass as long as this mould is completely empty. (That is not a good description) After cooling process, the glass bottle this mould can be removed from the mould. bottle glass as can be seen from the diagram.


This is not a good Task 1 example exercise. There is too little detail on it. Where did you get this task? It is a bad source for practice essays.