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Most jewelry wire that is sold now is designated dead soft, half-hard, or hard, where dead soft is wire that is manufactured with a hardness of 0, half-hard is wire manufactured with a hardness of 2, and fully hardened wire is wire with a hardness of 4. Boxes of jewellery wire. The left hand box has gold-plated, silver-plated and copper wire.
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It is a soft, malleable, and ... The adult body contains between 1.4 and 2.1 mg of copper per kilogram of body weight. [12 ... The copper plates were thought to have ...
Copper electroplating baths can be used to plate either a strike or flash coating, which is a thin highly-adherent initial layer that is plated with additional layers of metal and that serves to improve adhesion of the subsequent layers to the underlying substrate, or a thicker coating of copper that may serve as the finish layer or as a ...
Coffin plates are decorative adornments attached to a coffin that can contain various inscriptions like the name and death date of the deceased or a simple terms of endearment. They are usually made of a soft metal like lead, pewter, silver, brass, copper or tin. The different metals reflect the different functions of the plates, or the status ...
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Malden Plate A, depicting a human headed avian deity. The Wulfing cache, or Malden plates, are eight Mississippian copper plates crafted by peoples of the Mississippian culture. They were discovered in Dunklin County, Missouri in 1906 by Ray Grooms, a farmer, while plowing a field south of Malden. [1]
Nickel silver, maillechort, German silver, [1] argentan, [1] new silver, [1] nickel brass, [2] albata, [3] or alpacca [4] is a cupronickel (copper with nickel) alloy with the addition of zinc. The usual formulation is 60% copper, 20% nickel and 20% zinc. [5] Nickel silver does not contain the element silver. It is named for its silvery ...