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a method for tissue taken plate or ceiling element
a method for tissue taken plate or ceiling element
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机译:一种用于组织取材的板或天花板元件的方法
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摘要
The invention herein is directed to a method of providing a ceiling board with a fabric facing. The fabric facing is molded to the irregular shape of the ceiling board so that there is no wrinkling or gathering of the fabric as it is shaped to the configuration of the ceiling board. The lack of wrinkling and gathering is secured without the use of a laborious hand-cutting operation.
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