英文關鍵字
iron
metal
industry
circular
saw
manufacture
workshop
steel
man
factory
work
production
worker
equipment
safety
circle
job
protection
spark
sawing
disc
mechanic
tool
cut
craftsman
manual
grind
flash
skill
disk
burn
fabrication
garage
workplace
pipe
site
repairman
part
metalwork
handmade
heavy
flame
making
blacksmith
smithy
ironwork
heat
farrier
weld
occupation