金属産業
abstract
backgrounds
bouncing
business finance and industry
chrome
circle
coiled spring
color image
concepts
concepts topics
construction industry
construction machinery
emotional stress
engine
engineering
equipment
flexibility
heavy
industry
iron metal
machine part
machinery
manufactured object
manufacturing
manufacturing equipment
metal
metallic
mode of transport
new
order
part of
physical pressure
shock
shock absorber
spiral
spring flowing water
stainless steel
steel
suspension vehicle part
technology
textured
twisted
vehicle part
wire