adapter
aquifer
armature
axis
bolted
casted
chemical
city
clamp
company
concrete
connection
construction
covering
drink
equipment
factory
fittings
fuel
gasoline
gate
gate valve
gate valves
glove
hidingstem
industry
maintenance
network
network maintenance
occupations
petrochemical
pipe
pipeline
plant
potable
potable water
pressure
pressure gauge
protective
pump
service
shafts
system
treatment
tube
underground
valve
water
water network
water system
定額
Gate valves in valve pit of the underground piping networks. Laying water system pipeline at construction site. Water supply pipeline, pipes in trench. Sewage pumping stations, stormwater, utilitiesの素材 [FY310143029104]
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