英文關鍵字
liquid
metal
pour
form
hot
melt
flow
spark
fly
spread
laborer
protective
suit
stand
tank
bright
contemporary
plant
workshop
direction
heat
item
steelmaking
manufacturing
process
flash
framework
production
equipment
forging
light
burn
technology
crucible
factory
security
red
industry
iron
molten
ironmaking
energy
kazan
tatarstan