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Precious Metal Refining Services | Arch . Arch Enterprises is a silver refining company specializing in the recovery of silver scrap jewelry, flatware, x-ray film and other silver scrap. Refining of Petroleum REFINING OF PETROLEUM. Petroleum is a complex mixture of organic liquids called crude oil and natural gas, which occurs naturally in the ground and was ... Alexy Metals | Redefining Metal Refining PRECIOUS METAL RECOVERY. Alexy Metals is an industry leading refiner specializing in Brazing Alloys and extracting valuable GOLD, PLATINUM, SILVER and PALLADIUM ...    Read More

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