金属産業
機器
abstract
accuracy
aluminum
automobile
background
board
business
chrome
cnc
conveyor belt
cover
cylinder
cylindrical
design
engine
engineering
equipment
heavy
industrial
industrial equipment
industry
iron
machine part
manufactory
manufacture
manufacturing
manufacturing equipment
mechanics
metal
metal background
metal worker
metallic
part
part of
pattern
plate
platinum
rust
rusty
sheet
silver
stainless steel
steel
turning
wheel
work tool
working
workshop