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Importance of Ivory Keyboards in Pianos

A piano’s action parts are generally made of hardwoods, although some early models are plastic. These parts eventually began to lose strength after decades of use, so early plastic versions were discarded. In 1961, Steinway’s New York branch incorporated Teflon, a material developed by DuPont, into the piano’s Permafree grand action. 키보드 추천. Teflon is …

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