機器
communication
connection
construction
contractor
control
dig
engineering
equipment
factory
faucet
ground
industrial
infrastructure
installing
labor
maintenance
no people
objects
pipe
pipeline
plastic
plumbing
power
repair
safety
service
site
sleeve
steel
system
technical
technology
tube
urban
utility
work
定額
Repair of roads and communications. Replacement of sewer pipes and drains. pipes. Site on a city street. communications repair.の素材 [FY310201313262]
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