英文關鍵字
carpenter
chisel
circle
circular
close
closeup
construction
cutting
disc
electric
equipment
fire
grind
grinder
hand
hands
industrial
industry
machine
man
manufacture
manufacturing
mechanic
metal
pan
people
power
preparation
production
professional
protection
safety
sharp
sharpening
skills
sparks
spin
steel
structure
table
tool
tools
trade
trailer
truck
wood
work
worker
workshop