英文關鍵字
adapter
adjuster
bar
bathroom
brass
close
closeup
connection
control
copper
engineering
equipment
faucet
flow
flowing
handle
industry
installation
installing
instrument
liquid
metal
nut
object
one
path
pipe
pipeline
plumber
plumbing
presentation
pressure
pressuring
reducer
reductor
regulate
regulation
regulator
safety
steel
stopcock
supplies
system
tap
tube
turning
up
valve
water