英文關鍵字
circle
circular
construction
custom
cut
disc
disk
electric
engineering
equipment
factory
flash
grind
grinder
hand
handmade
industrial
industry
iron
machine
man
manufacture
manufacturing
mechanic
metal
person
power
production
protection
repair
saw
service
spark
sparkle
sparks
spinning
steel
technology
tools
turning
work
working
workshop