石英砂型芯是采用熔模精密铸造的常用材料，通过特定的制芯工艺制成的一种铸造用型芯。

Quartz sand core, which is made in accordance with a special core making technique of casting, is one of common materials used in Investment casting.

youdao

石英砂型芯是采用熔模精密铸造的常用材料，通过特定的制芯工艺制成的一种铸造用型芯。

Quartz sand core, which is made in accordance with a special core making technique of casting, is one of common materials used in Investment casting.

youdao