阅读说明：本技术 制造具有所需比重的耐久的尺寸稳定的挤出板材货品的系统与方法 (System and method for making durable dimensionally stable extruded sheet goods having a desired specific gravity ) 是由 S·S·勒布朗 于 2019-12-31 设计创作，主要内容包括：本发明提供了用于生产用于表面覆盖物中的尺寸稳定的挤出板产品的系统、方法和设备。该板产品可以是用作墙壁或其它表面覆盖物的基材的基于玄武岩铸造粉末的产品,或可用作模块化楼板覆盖物单元中的芯层。该模块化楼板覆盖物单元包括多个层。所述层是薄切石饰面层、具有密度类似于该薄切石饰面层的芯层、和任选的磁吸衬层。也可使用其它层或层的组合。(The present invention provides systems, methods and apparatus for producing dimensionally stable extruded sheet products for use in surface coverings. The board product may be a basalt cast powder based product for use as a substrate for walls or other surface coverings, or may be used as a core in modular floor covering units. The modular floor covering unit comprises a plurality of layers. The layers are a thin cut stone veneer layer, a core layer having a density similar to the thin cut stone veneer layer, and an optional magnetically attractable lining layer. Other layers or combinations of layers may also be used.)