The diagram represents the order in 
how
 Correct word choice
which
bricks
 are produced for the building industry.  
Use synonyms
According to
 the diagram, the process has various seven steps, Linking Words
a
 first is claying by digger, and the Correct article usage
the
last
 one is delivery delivers made Linking Words
bricks
 to building companies.
At the beginning, the digger digs clay. After Use synonyms
clay
 Add an article
the clay
is filter
 with Change the verb form
is filtered
metal
 grid in a roller. Next mixture Add an article
the metal
a metal
cuts
 in Wrong verb form
is cut
wire
 cutter or keeps in a mould to figure them before Correct article usage
a wire
it 
sand and water Correct pronoun usage
apply
adds
. Later formed Wrong verb form
are added
bricks
 Use synonyms
sends
 to Wrong verb form
are sent
drying
 oven for about Correct article usage
the drying
to 
24-48 hours. Change preposition
apply
Following
 Correct article usage
The following
bricks
 Use synonyms
goes
 to Change the verb form
go
kiln
 to moderate them Correct article usage
the kiln
in
 200-980 degrees up to 870-1300, in a cooling chamber moderated Change preposition
at
bricks
 Use synonyms
freezes
 Correct subject-verb agreement
freeze
to
 2-3 days. The penultimate step is Change preposition
for
packaging
 and delivery stage Correct article usage
the packaging
transform
 Wrong verb form
transforming
bricks
 Use synonyms
to
 customers.Change preposition
into