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

The diagram explains the way in which

bricks

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are made for the building industry.

Overall

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, there are seven stages in the

process

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, beginning with the digging up of

clay

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and culminating in delivery.

To begin

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, the

clay

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used to make the

bricks

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is dug up from the ground by a large digger.

This

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clay

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is

then

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placed onto a metal grid, which is used to break up the

clay

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into smaller pieces. A roller assists in

this

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process

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.

Following

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this

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, sand and water are added to the

clay

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, and

this

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mixture is turned into

bricks

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by either placing it into a mould or using a wire cutter.

Next,

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these

bricks

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are placed in an oven to dry for 24 – 48 hours. In the subsequent stage, the

bricks

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go through a heating and cooling

process

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. They are heated in a kiln at a moderate and

then

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a high temperature (ranging from 200c to 1300c), followed by a cooling

process

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in a chamber for 2 – 3 days.

Finally

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, the

bricks

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are packed and delivered to their destinations.