angle

angular

background

basement

black

bulgarian

circle

circular

construction

cutting

disc

electric

engineering

equipment

factory

fastflying

flash

grinder

grinders

grinding

hand

horizontal

industrial

industry

iron

job

light

machine

machinery

man

manual

manufacture

manufacturing

mechanic

metal

occupation

pipe

power

production

protection

safety

spark

sparks

steel

technical

tool

wheel

work

worker

workshop