the diagram shows the stages of making bricks

This

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diagram illustrates the way in which

bricks

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are made for the building industry.

Overall

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,

this

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process has 7 stages, beginning with the digging up of

clay

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from the ground 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. A roller assists in

this

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stage to break up the

clay

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into smaller pieces.

Following

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this

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, water and sand are added to the

clay

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, and

this

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mixture is turned into

bricks

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either by placing it in a mould or using a wire cutter. These

bricks

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are

then

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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. They are heated in a kiln at moderate and high temperatures (from 309c -509c), followed by a cooling process in a chamber for 48 hours.

Finally

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, the

bricks

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are packed and delivered to their destinations.