Analyzed the case of 021 piston casting mold failure.

对021活塞浇铸模失效案例进行分析。

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One-time die casting mold, the weight error is small, high efficiency.

模具一次性压铸成形，重量误差小，生产效率高。

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Manipulation performance, appearance of the casting mold and color of the castings were observed.

观察浆料的操作性能、型壳表面状态、铸件颜色等。

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Casting herself in the Ted Stevens mold, however, she had proved herself skilled at collecting federal earmarks for Wasilla, bringing in twenty-seven million dollars for her small town in three years.

NEWYORKER: The State of Sarah Palin