Industry concept: Chemical Industry on School board background
Palabras clave
background,
business,
texture,
icon,
school,
technology,
construction,
building,
education,
paint,
energy,
concept,
blue,
oil,
industry,
electricity,
white,
blackboard,
power,
drawn,
blackboard,
factory,
black,
drawing,
vignetting,
industrial,
hand,
plant,
learning,
board,
chemical,
doodle,
engineering,
gas,
text,
study,
process,
manufacturing,
automotive,
chalk,
learn,
scratch,
production,
word,
station,
instructing,
lesson,
stroke,
hatch
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