英文關鍵字
abrade
abrasive
action
closeup
cut
detail
electrically
equipment
gloves
grinder
grinding
handling
handmade
hands
indoors
industrial
inside
light
machine
man
manually
manufactory
manufacturing
metal
metalwork
operation
part
people
polish
polishing
processing
production
professional
rotating
rotatory
small
smooth
steel
tool
treatment
uniform
using
work
worker
working
workman
workplace
workshop