機器
background
clock
closeup
control
cylinder
energy
engine
engineering
equipment
factory
fire extinguisher
fireman
gas
gauge
hose
hoses
hydraulic
indicator
industrial
industry
machinery
manometer
manufacturing
measure
measurement
mechanism
metal
meter
new
object
part
pipe
plant
pneumatic
power
pressure
production
pump
retro
round
safety
steel
system
table
technology
tool
valve
water
work