Machine-building drawings on a blue background
Palabras clave
abstract,
background,
blueprint,
cad,
chalk,
blackboard,
concept,
connection,
construct,
construction,
design,
designer,
desktop,
display,
draft,
draw,
drawing,
education,
element,
engineer,
engineering,
equipment,
graphic,
idea,
illustration,
industry,
mechanical,
paper,
pattern,
plan,
project,
projection,
ruler,
schematic,
scheme,
school,
screw,
shape,
vignetting,
steel,
structure,
studies,
symbol,
technical,
technology,
texture,
tool,
vector,
wallpaper,
blue
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