機器
bypass
chrome
cold
combination
component
compressor
connection
connector
control
copper
detail
device
direction
factory
flow
fuel
gas
heat
hot
ice
industrial
industry
installation
manufacturing
metal
open
pipe
pipework
plant
pressure
pump
red
refrigeration
shut
spare
stainless
steel
stream
system
tap
temperature
tube
turn
twist
unit
valve
water
wheel
work