The given pictures explain the process in which pencils are manufactured. Overall, there are 13-distinct stages illustrated which are commenced by planting trees and culminating in useful lead pencils.
As the initial, the tree used to produce pencils are planted as small plants then after 120 days they are replanted again in a suitable place. The following 3 years, trees grow thinner and they are left for 14 years to be ready to use their wood in industry. At this point, woods are cut and transferred then by a specific machine they are divided into thin slats with determined thickness.
In the subsequent stage, these slats are treated in a hot chamber for 2 months to be dry properly. Next, slats surface is grooved to prepare template for blach lead then lead is covered by another layer of grooved sheet to form which is called sandwich. By a extreme pressure and high temperature lead sandwichbe ready to divide each rod separately. finally, Individual lead pencils are painted by different colors, sharpened, stamped and packaged in envelopes to be sold.
The
given
pictures
explain
the process in which pencils
are manufactured
.
Overall
, there are 13-distinct stages illustrated which
are commenced
by planting trees and culminating in useful
lead
pencils.
As the initial, the tree
used
to produce pencils
are planted
as
small
plants then after 120 days they
are replanted
again in a suitable place. The following 3 years, trees grow
thinner and
they are
left
for 14 years to be ready to
use
their wood in industry. At this point, woods are
cut
and transferred then by a specific machine they
are divided
into thin slats with determined thickness.
In the subsequent stage, these slats
are treated
in a hot chamber for 2 months to be dry
properly
.
Next
, slats surface
is grooved
to prepare template for
blach
lead
then
lead
is covered
by another layer of grooved sheet to form which
is called
sandwich. By
a
extreme pressure and high temperature
lead
sandwichbe
ready to divide each rod
separately
.
finally
, Individual
lead
pencils
are painted
by
different
colors, sharpened, stamped and packaged in envelopes to
be sold
.