英文關鍵字
industrial
supply
regulator
pump
production
pipeline
pipe
industry
gas
fuel
valve
control
energy
refinery
system
component
tatarstan
view
workshop
close
bright
angle
winter
white
yellow
wellhead
steel
compression
economy
shot
equipment
well
machine
natural
latch
oil
connect
connector
petroleum
snow
new
mechanic
background
bolt
low
pressure
rig
frost
blue
metal