機器
angle
builder
building
circular
cleaning
construction
contractor
cut
danger
design
diamond
disc
electric
engineer
engineering
equipment
foreman
grinder
grinders
grinding
handyman
hardhat
industrial
industry
iron
male
man
manual
manufacturing
metal
nozzle
occupation
paint
power
protection
protective
renovation
safety
saw
site
sparks
steel
technology
tool
wall
wheel
work
worker
workshop