英文關鍵字
steel
metal
iron
molten
liquid
timelapse
hyperlapse
foundry
furnace
casting
factory
industry
heat
hot
work
red
flame
industrial
equipment
melting
workshop
plant
fire
smelting
metallurgical
manufacturing
metallurgy
pouring
container
smelt
tank
department
spark
steelworks
sparkles
heavy
hearth
mold
framework
irony
molding
bronze
shiny
stream
cast
technology
fires
steam