在一个案例中，业内高管发现一种号称纯金的涂层其实是一种复杂的合金，含有锇、铱、钌、铑等稀有金属。
In one case, executives discovered a coating advertised as pure gold that masked a complex alloy, which included rare metals such as osmium, iridium, ruthenium and rhodium.
的成交记录。银元材质珍贵，艺术价值高，由贵重金属或白银合金铸造，制作。
Transaction record. Silver precious material, high artistic value, cast by the precious metals or silver alloy production.
用氯化物氢还原法从废料中回收高熔点金属和合金具有良好未前景。
Hydrogen reduction of chlorides is a perspective recovery process for refractory metal and alloy scraps.
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