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

are made for the building industry.

Overall

, there are seven stages in the

process

, beginning with the digging up of

clay

and culminating in delivery.

To begin

, the

clay

used to make the

bricks

is dug up from the ground by a large digger.

This

clay

is

then

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

clay

into smaller pieces. A roller assists in

this

process

.

Following

this

, sand and water are added to the

clay

, and

this

mixture is turned into

bricks

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

Next,

these

bricks

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

bricks

go through a heating and cooling

process

. They are heated in a kiln at a moderate and

then

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

process

in a chamber for 2 – 3 days.

Finally

, the

bricks

are packed and delivered to their destinations.