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Since January 1, 2005, telemarketers covered by the registry have up to 31 days (initially the period was 90 days) from the date a number is registered to cease calling that number. Originally, phone numbers remained on the registry for a period of five years, but are now permanent because of the Do-Not-Call Improvement Act of 2007, effective ...
Titanium Metals Corporation, or most commonly referred to as TIMET, a shortened version of "TItanium METals" that is a registered company trademark. TIMET, founded in 1950, is an American manufacturer of titanium -based metals products, focusing primarily on the aerospace industry headquartered in Warrensville Heights, Ohio .
RTI International Metals (RMI Titanium Company Inc. R eactive M etals I nc.), founded in 1950, is a leading US producer of titanium mill products and fabricated metal components for the global market.
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In more specialized fields of study and applications the number of elements counted as noble metals can be smaller or larger. It is sometimes used for the three metals copper, silver, and gold which have filled d-bands, while it is often used mainly for silver and gold when discussing surface-enhanced Raman spectroscopy involving metal ...
When a galvanic couple forms, one of the metals in the couple becomes the anode and corrodes faster than it would alone, while the other becomes the cathode and corrodes slower than it would alone. Stainless steel, due to having a more positive electrode potential than for example carbon steel and aluminium, becomes the cathode, accelerating ...
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Refractory metals have high melting points, with tungsten and rhenium the highest of all elements, and the other's melting points only exceeded by osmium and iridium, and the sublimation of carbon. These high melting points define most of their applications. All the metals are body-centered cubic except rhenium which is hexagonal close-packed.