Transcription: The basic materials. The basic materials. Basic building materials. Covering materials. Insulating materials. Wood. Wood-based materials. Insulating materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. The basic materials. ...
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