Inside the Gold Refinery – (Full Process) How Raw Ore Becomes Pure Gold
Автор: Built Inside Factories
Загружено: 2026-02-23
Просмотров: 504
Описание:
Step inside a modern gold refinery and witness the complete industrial transformation from raw mined ore to 999.9 pure investment-grade gold bars.
This full-process documentary takes you through every stage of refining — crushing and grinding raw ore, chemical extraction, filtration, high-temperature smelting, impurity removal, electro-refining, precision casting, stamping, laser engraving, purity testing, and final certification.
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