前言： 湿砂型铸铁件产生砂孔和渣孔缺陷的主要原因是：（1）芯头或砂台的间隙偏小；

The reasons causing sand inclusion and slag inclusion are: ( 1 ) gaps between mould and core prints or cods too small;

youdao

前言： 湿砂型铸铁件产生砂孔和渣孔缺陷的主要原因是：（1）芯头或砂台的间隙偏小；

The reasons causing sand inclusion and slag inclusion are: ( 1 ) gaps between mould and core prints or cods too small;

youdao