金属産業
機器
aluminum
アルミニウム
chrome
commodities
cycle
cylinder
cylindrical
engineering
equipment
factory
fuel
group of objects
heavy
hydraulic
industry
iron
machining
macro
manufacture
metal
metallic
metalwork
natural gas
nobody
part
pipe
pipeline
piston
power
repairing
repetition
roller
rusty
service
shelf
shiny
silver
square shape
stack
stainless
stainless steel
steel
storage room
technology
turning
warehouse
water pipe
work tool
working