bright flame in a smelting shop during copper production at a metallurgical plant

action asia big black bright buckets building close construction converting copper coppersmelting dark development eurasia factory fire flame floor fumes furnace golden grunge haze hot indoor industrial industry job krai krasnoyarsk labor labour ladle large manufactory manufactured melting metal metallic metallurgical metallurgy mill molten nature nickel norilsk orange ore plant production progress region reportage russia shop smelter smelting smog smoke sparks temperature weather work works