With the extensive use of the artificial sand and shotcrete in engineering,the application of the artificial mixed gravel sand in shotcrete have been emphasized by constructor.

 
  • 隨著(zhù)機制砂及噴射混凝土在工程的廣泛應用,機制礫砂在噴射混凝土中的應用已引起工程建設者的重視。
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