機器
alloy
aluminium
aluminum
company
equipment
factory
ferrous
gray
grid
grizzled
hard
heavy
hoar
industrial
industry
iron
ironworks
leaden
manufacture
metal
metallic
metallurgic
metallurgy
moscow
plant
plate
production
rod
role
roll
rough
russia
seamless
shaped
sheet
shine
silver
smelting
stack
steel
strong
surface
texture
tough
tread
warehouse
wire