機器
bottle
construction
craftsman
design
electric
engineer
equipment
flat
gas
girl
gloves
hammer
helmet
icon
industrial
industry
instrument
isolated
logo
man
manufacture
manufacturing
mask
metal
people
person
pipe
png
protection
repair
safety
ship
sign
silhouette
spark
steel
symbol
tool
vessel
web
weld
welder
welding
work
worker
workman