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