英文關鍵字
building
coating
commercial
construction
control
corrosion
equipment
exterior
factory
flow
galvanized
green
hand
industrial
industry
iron
job
labor
line
machine
man
manufacture
manufacturing
metal
modern
occupation
paint
painter
part
person
plant
powder
process
project
protection
protective
remodel
renovate
renovating
repair
service
spray
sprayer
steel
surface
technology
wall
white
work
worker