The reason back of sand cores were related to core - making equipment, core materials and core - making process.

砂芯脱壳的原因与制芯设备 、 制芯材料、制芯工艺有关.

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The design of two core boxes used on Z 8612 core - making machine was introduced.

介绍了用于Z8612型射芯机的两种芯盒工装设计.

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This new amine cold box binder has been developed to improve workability during core - making.

该粘结剂是为了改善铸模成型时的操作性而开发的胺冷芯盒粘结剂.

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