機器
background
black
blue
bolt
close
connect
connector
control
corrugated
distribution
energy
facility
factory
flow
gas
green
hydrant
hydrants
industrial
industry
installation
intake
iron
lines
main
manifold
manufacturing
mechanics
metal
metallic
meter
open
pipe
pipes
plant
plumb
plumbing
pressure
pump
red
source
steel
system
taps
transportation
turn
twist
valve
water