molten copper is pouring to melting pot. campfires are about 200 °c short of the temperature needed, so some propose.

bright burn burning campfires cast casting copper equipments factory first flame flames foundry furnace glowing heat heavy horizontal hot industrial industry iron kilns light machine machinery manufacture manufacturing may melt melting metal metallurgy mine mining mold molding moldings molds molten needed occurred pattern photography photos pot pottery pouring production propose sand short smelter smelting smoke some sparks steel temperature traditional