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