機器
black
booster
centrifugal
compressor
construction
control
design
distribution
electric
energy
engine
equipment
gear
hand
icon
illustration
industrial
industry
irrigation
isolated
line
motor
outline
pipe
pipeline
piping
plant
plumbing
power
pressure
pump
pumping
room
scroll
sewage
silhouette
steel
submersible
supply
system
technology
thin
treatment
waste
water
well