旧砂再生技术的发展动态旧砂再生势在必行在工艺及经济变化的同时确定再生的可行性，许多公司在总的用砂费用上获得节约效益。当你听到许多关于再生的成就，常常会提到如果你现在不去再生，将来也将会在几年内要采用。因为大量事实表明，堆集场的关闭，运输量的增加，倾倒... The development trend of the old sand regeneration technology Old sand regeneration is imperative In the process and economic changes at the same time to determine the feasibility of regeneration, many companies in the total sand cost savings on the benefits. When you hear a lot of achievements about regeneration, it is often mentioned that if you do not regenerate now, you will want to adopt it in a few years to come. Because a large number of facts show that the closure of the yard, the increase in traffic, dumping ...