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Gold and gold alloys have characteristics of durability, stability, and corrosion resistance. In medicine, they are mainly used in the form of alloys. If the alloy contains 75% (by mass) or more gold and other precious metals, it can retain its good corrosion resistance. Alloys with a gold content exceeding 83% are softer and used for inlaying, but their hardness is too low to withstand high pressure.
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