英文關鍵字
advanced
aluminium
background
billet
burn
business
construction
crane
cutting
device
dimensions
drilling
durable
energy
engineering
equipment
exact
factory
gray
heavy
hole
industrial
industry
iron
lean
machine
machinery
manufacture
manufacturing
mechanism
metal
metalworking
modern
parts
plant
power
production
red
roll
rollers
round
sheet
special
steel
technical
technology
tool
warehouse
work
workshop