機器
3d rendering
arm
assembly
auto
automated
automatic
automation
automobile
automotive
background
belt
business
car
construction
control
conveyor
economy
engineering
equipment
factory
futuristic
hydraulic
industrial
industry
line
machinery
manufacture
manufacturing
mechanic
mechanical
metal
metallic
modern
motor
part
plant
production
robot
robotic
safety
sparks
steel
technology
transportation
vehicle
warehouse
welder
welding
work