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未標題-1

銀錠

注冊商標:
“云亨”牌
執行標準:
GB/T4135-1994
牌 號:
Ag99.99 Ag99.95 Ag99.90
包 裝:
每錠凈重約15Kg,木箱或編織袋包裝,每箱兩錠,凈重約30Kg;
性 狀:
銀白色金屬,質軟,塑性好,導電性強。密度10.5g/cm3,熔點960.8℃。
主要用途:
用來制造感光材料和電工器材。在電鍍、醫療器械、鑲牙等方面也使用大量的銀。銀及其合金用于制造裝飾品及貨幣。

性激烈的欧美三级视频
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