機器
accessories
apparatus
appliance
arc
construction
design
device
electric
element
equipment
factory
fire
flash
flat
gas
graphic
hand
helmet
icons
illustration
industry
instrument
isolated
laborer
light
man
manometer
manufacturing
mask
metal
pictogram
power
profession
protection
set
sign
silhouette
symbol
technology
tool
torch
web
weld
welder
welding
white
work
worker