Transaction record. Silver precious material, high artistic value, cast by the precious metals or silver alloy production.
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。
2
Objective to study the microsegregation phenomenon in as-cast micro structure of a precious metal ceramic alloy so as to provide theoretic basis for study on this kind of alloy.
目的观察贵金属烤瓷合金铸态组织成分偏析情况，为该合金性能研究提供理论依据。
3
They could also fake the look of a coin by chemically treating the surface of an alloy (which may or may not have contained precious metals) to give it a silvery or golden sheen.