The flow chart illustrates the progress of the
bricks
Use synonyms
were
produced by the building manufacturers.
There were seven stages in the process. Throughout the process, which began with the digger digging the clayCorrect pronoun usage
that were
,
and ended with the Punctuation problem
apply
bricks
being delivered by trucks. The first step was that the clay was dug by Use synonyms
excavator
, Correct article usage
an excavator
then
Linking Words
put
the metal grid Verb problem
apply
on
the roller. Verb problem
was put on
Following
Linking Words
this
, these materials were mixed with sand and water in order to divide into two categories, one was Linking Words
wire
cutter Correct article usage
a wire
the
other was Punctuation problem
, the
mould
.
After that, all of the Correct article usage
a mould
bricks
were heated in a drying oven for around 24 hours to 48 hours. Use synonyms
However
, the Linking Words
bricks
were kilned at a moderate temperature ( about 200 Use synonyms
degrees
to 990 Use synonyms
degrees
), before staying in the cooling chamber, which took two or three days, and the Use synonyms
bricks
needed to pass by a higher temperature than before ( approximately 870 Use synonyms
degrees
to 1300 Use synonyms
degrees
).
In the final step, all the Use synonyms
bricks
were packaged and piled by the industries to transport Use synonyms
to
everywhereChange preposition
apply
,
which needed Punctuation problem
apply
it
.Correct pronoun usage
them