本文介绍了这种铸件在生产过程中，不出砂坭芯的排气和摆放芯撑的方法。
This paper introduces the methods of the air venting of sealed cores and the place merit of core supports. This process puts forward a new concept in casting production.
本文介绍了这种铸件在生产过程中，不出砂坭芯的排气和摆放芯撑的方法。
This paper introduces the methods of the air venting of sealed cores and the place merit of core supports. This process puts forward a new concept in casting production.
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