英文關鍵字
process
industrial
sheet
steel
stamping
manual
placing
removing
workpiece
word
die
bending
mechanical
factory
russian
outdated
operator
cycle
dark
dirty
soviet
vertical
technology
iron
manufacturing
worker
inside
machinery
production
processing
machine
equipment
metal
press
manufacture
stamp
part
shape
working
control
work
workshop
operation
heavy
tool
industry