• 发明有益效果:制出材现有技术提高8%以上,可用建筑结构的 结构等承重材料门窗、楼梯扶手装饰材料。

    The invention has the advantages that: its material outlet rate is improved 8% than present technique, while it can be used as structural beam, post and the ornament of door and window, etc.

    youdao

  • 发明有益效果:制出材现有技术提高8%以上,可用建筑结构的 结构等承重材料门窗、楼梯扶手装饰材料。

    The invention has the advantages that: its material outlet rate is improved 8% than present technique, while it can be used as structural beam, post and the ornament of door and window, etc.

    youdao

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