The diagram illustrates the process that is used to manufacture bricks for the building industry. Summarized the information by selecting and reporting the main features and make comparisons where relevant.

The diagram describes the process of manufacturing

bricks

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used for building. We can see vividly that the manufacturing process includes eight main stages, starting with digging clay and ending with the delivery to customers.

At the first stage

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in the production of

bricks

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, clay is dug and

then

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put on a metal grid to make sure that it is qualified. After that, clay, sand and water are mixed together.

This

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mixture is formed by two options including being cut with a wire cutter or being moulded.

Then

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, raw

bricks

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are brought to the drying oven and stay there for 24 to 48 hours before being fired in a kiln with two different temperature levels. In the first level, they are burnt at a moderate temperature from 200 to 980 °C.

Subsequently

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, they are heated in the high temperature from 870 to 1300°C in the sea.

Next,

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heated

bricks

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are put in the cooling chamber for 48 to 72 hours. At the

last

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stage, the finished products are packed and delivered to the customers