Operating hints and safety requirement of re melting in crystal pattern tin plating were introduced.

介绍了晶纹镀锡中重熔工序的操作要点和安全要求。

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Describes the process, operating hints for crystal-tin plating and stripping of the defective films.

阐述冰花镀锡的工艺流程、要点，以及不良镀层的退除。

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Conduct anodizing of aluminum and its alloy was introduced with operating hints and points for attention of pretreatment, anodizing, post-treatment procedure.

介绍了铝极其合金导电氧化工艺过程中前处理、阳极氧化以及后处理等工序的操作要点和注意事项。

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