英文關鍵字
factory
hand
industry
metal
plant
steel
tool
work
worker
workpiece
close
disk
fitting
handheld
hands
held
mittens
motion
power
processing
rotate
safety
gloves
industrial
machinery
male
man
manufacture
manufacturing
mechanical
process
production
profession
cable
coil
lift
electric
closeup
person
one
click
button
machine
equipment
bobbin