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Process for the production of insulating hard rock acoustic bodies, apparatus for carrying out the process, and subsequently obtained hard rock.
Process for the production of insulating hard rock acoustic bodies, apparatus for carrying out the process, and subsequently obtained hard rock.
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机译:用于制造绝缘硬岩声学体的方法,用于执行该方法的设备以及随后获得的硬岩。
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摘要
The method is characterised in that it essentially consists in inserting, during the moulding, at least one longitudinal profile (2) into the foam during its formation. IMAGE
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