The mixed material should be used up within 30 minutes.
混合完成材料需30分钟以内施工完毕;
This means less maintenance and more high-quality mixed material output.
这意味着更少的维护和更优质的混合材料的产量。
A new building material patent: concrete mixed material with middle and low strength is invented.
介绍了一项最新建材专利技术中低强度等级混凝土掺合料技术。
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