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A Sichuanese man carrying 13,500 cash coins.. A string of cash coins (Traditional Chinese: 貫, 索, 緡, 繦, 鏹, [a] 吊, 串, 弔, 錢貫, 貫錢, [b] 貫文, 吊文, or 串文; French: Ligature de sapèques) refers to a historical Chinese, Japanese, Korean, Ryukyuan, and Vietnamese currency unit that was used as a superunit of the Chinese cash, Japanese mon, Korean mun, Ryukyuan mon, and ...
In many places brass, which is cheaper and easier to cast, was preferred to copper, so the Portuguese introduced smaller, yellow manillas made of copper and lead with traces of zinc and other metals. In Benin, Royal Art of Africa , by Armand Duchateau, is a massive manilla of 25 centimetres (9.8 in) across and 4.5 centimetres (1.8 in) gauge ...
An example of a copper alloy conductor is cadmium copper wire, which is used for railroad electrification in North America. [5] In Britain the BPO (later Post Office Telecommunications ) used cadmium copper aerial lines with 1% cadmium for extra strength; for local lines 40 lb/mile (1.3 mm dia) and for toll lines 70 lb/mile (1.7 mm dia).
Double Your Money Selling Old Pennies by the Pound. Dan Caplinger. Updated July 14, 2016 at 9:43 PM. ... pennies were made up of 95% copper, with the remaining 5% being either zinc or tin. As a ...
A machine-struck "Great Qing Copper Coin" (大清銅幣) cash coin of 10 wén in standard cash coins.. The Great Qing Copper Coin [1] (simplified Chinese: 大清铜币; traditional Chinese: 大清銅幣; pinyin: Dà Qīng Tóng Bì), also known as the Qing Dynasty Copper Coin or Da-Qing Tongbi, officially the Tai-Ching-Ti-Kuo Copper Coin, refers to a series of copper machine-struck coins from ...
Copper wire thefts have also become increasingly common in the US. With copper prices at $3.70 a pound as of June 2007, compared to $0.60 a pound in 2002, people have been increasingly stealing copper wire from telephone and power company assets. People have even been injured and killed in power plants while trying to obtain copper wire.
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John Ferreol Monnot, metallurgist, the inventor of the first successful process for manufacturing copper-clad steel. Copper-clad steel (CCS), also known as copper-covered steel or the trademarked name Copperweld is a bi-metallic product, mainly used in the wire industry that combines the high mechanical strength of steel with the conductivity and corrosion resistance of copper.