機器
background
bolt
connection
construction
engineering
equipment
factory
flange
flanged
flow
gas
hardware
heavy
industrial
industry
iron
joint
large
macro
manufacturing
metal
metallic
nobody
nut
object
oil
old
part
pipe
pipeline
piping
plant
pressure
pump
screw
screwed
shiny
silver
stainless
steel
technology
thread
tool
tube
valve
white
work
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