英文關鍵字
cast
equipment
factory
fireproof
furnace
fused
heavy
industry
iron
machine
manufacturing
metal
metallurgical
metallurgy
mold
molded
molten
ovenproof
production
sand
smelting
steel
technology
英文關鍵字
cast
equipment
factory
fireproof
furnace
fused
heavy
industry
iron
machine
manufacturing
metal
metallurgical
metallurgy
mold
molded
molten
ovenproof
production
sand
smelting
steel
technology