The technological experiment of reclaimed resin bounded sand produced through dry reclamation is made, the way of which is standard.
对干法再生出来的树脂再生砂进行制芯的工艺实验，实验标准按照生产上的要求来实行。
The technological experiment of reclaimed resin bounded sand produced through dry reclamation is made, the way of which is standard.
对干法再生出来的树脂再生砂进行制芯的工艺实验，实验标准按照生产上的要求来实行。
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