英文關鍵字
construction
site
red
cover
cable
laying
trench
connection
equipment
industrial
work
ground
earth
industry
wire
large
engineering
professional
heavy
installation
machine
steel
pipe
pipeline
tube
build
people
technology
line
英文關鍵字
construction
site
red
cover
cable
laying
trench
connection
equipment
industrial
work
ground
earth
industry
wire
large
engineering
professional
heavy
installation
machine
steel
pipe
pipeline
tube
build
people
technology
line