機器
alloy
big
blade
chrome
circle
circular
cogwheel
connect
construction
cutout
cutting disk
electric
engine
engineering
equipment
gear
gearwheel
group
industrial
industry
iron
machinery
mechanical
mechanics
mechanism
metal
metallic
nut
object
part
power
powerful
professional
rotary
rotary table
rotation
round
screws
slot
stainless
steel
structure
technical
technology
tool
torque
wheel
work
zinc