機器
accuracy
accurate
alloy
aluminum
background
cast
chrome
circle
control
detail
dirty
engineering
equipment
factory
frame
heavy
industrial
industry
iron
manufacturing
material
metal
metallic
modern
motor
nobody
object
obsolete
part
pattern
piston
precision
production
quality
rubbish
rust
saw
scrap
shape
stainless
steel
technology
tool
welding
wheel