We pulverise these to make it powder-like and we mix it with cement and sand and put it in a mould and turn it into concrete products.
我们把这些压成细粉，然后混合在水泥及沙里，之后把它放在一个模盒里，作成混凝土制的产品。
2
The re bar net preliminary lining mould shotcrete and preliminary and anchor shotcrete are used for support by the use of the semi wet spraying method with sand entrapped in cement.