The diagram illustrates the process that is used to manufacture bricks for the building industry.

This

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picture shows 7 steps in brick manufacture in the building industry.

To begin

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with, workers

use

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diggers to excavate

clay

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and gather them.

Then

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they put

clay

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into a metal grid to sift out block

clay

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.

Besides

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, rollers can be used to transport

clay

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into the next step, which pour sand and water into the

clay

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and

mixing

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mix

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them.

Next,

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workers can

use

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a mould to generate standard

bricks

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or just

use

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a wire cutter to cut the material in order to make

bricks

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. Fourth,

bricks

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would be stored in the drying oven for 24~48 hours to dry out the moisture. The next step contains three processes, which

use

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moderate(200~900) and high(870~1300) temperatures to bake them.

Then

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use

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a cooling chamber to chill them for 48~72 hours. After these five steps, the

bricks

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could be piled together and packaged .

Finally

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, workers could

use

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trucks to deliver them to building industries. In conclusion, these steps give a short introduction to how to manufacture

bricks

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.