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Invention Grant
US08118928B1 Cast ceiling tile 有权
铸天花板瓷砖

Cast ceiling tile
Abstract:
A cast type ceiling tile comprising a mixture containing 30 to 70% mineral wool, 10 to 40% expanded glass beads, 8 to 20% starch, 0 to 15% stucco, and 0 to 1% boric acid.
Abstract(Chinese):

一种铸造型天花板瓦，其包含含有30-70％矿物棉，10-40％膨胀玻璃珠，8-20％淀粉，0-15％灰泥和0-1％硼酸的混合物。

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