熬委会给的金银铜牌技术参数

The International Olympic Committee requires

gold and silver medals to be made with a minimum of 92.5% pure silver.

The first-place medals for the Paris Olympics have 6 grams of gold plating

and weigh 529 grams total,

the silver medals weigh 525 grams.

 

A bronze medal is an alloy made of copper,