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
detail
intense
heavy
crucible
glowing
tank
pour
orange
spark
molding
mold
action
hearth
background
vat
shiny
manufacture
slag
sparkles