angle

building

circular

concept

construction

cuts

cutting

disc

electric

electrical

engineering

equipment

factory

fitter

gloves

grinder

grinding

heavy

industrail

industrial

industry

iron

job

labor

laborer

labour

man

manufacturing

mask

mechanic

mechanical

metal

one

people

polishes

power

protection

repair

repairing

safety

skill

spark

sparking

sparks

steel

technical

technology

tool

welder

welding

wheel

work

worker

workshop