英文關鍵字
coating
construction
control
corrosion
device
equipment
fabric
factory
finishing
floor
flow
galvanized
galvanizing
gun
hand
industrial
industry
iron
labor
layer
line
machinery
manufacture
manufacturing
metal
modern
paint
part
plant
powder
process
product
production
protection
protective
pulverizer
service
spray
sprayer
steel
surface
tech
technician
technology
thermal
tool
white
work
worker
zinc