abundance
backgrounds
building activity
china east asia
circle
closeup
color image
connection
construction
construction industry
construction material
construction site
engineering
equipment
fujian province
horizontal
industrial equipment
industry
large group of objects
laying
lines
longyan
new
no people
outdoors
pile
pipe tube
pipeline
pipes
plastic
plastic pollution
pvc
red
repairing
repetition
road
roadside
safety
sewer
site
social issues
stack
stacking
street
surface
tube
utility
water
water pipe