機器
background
bolt
business
chemical
connection
connector
construction
control
energy
engineering
equipment
factory
fossil
fuel
gas
gasoline
generation
head
industrial
industry
line
mechanical
metal
natural
oil
oilfield
pipe
pipeline
pipelines
pipework
piping
plant
power
pressure
production
pump
rig
station
steel
supply
technology
tool
tube
unit
valve
valves
water
well
work
定額
Oil and gas processing plant with pipe line valves. Oil pipeline valves in the oil and gas industry. Valve plug an oil pipeline in the field on a sunny summer dayの素材 [FY310119593889]
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