着重论述阀芯在精密加工过程中变形的控制、研具改进、精密磨削方法研究以及加工毛刺的控制与清除等方面所做的探索工作。

Mainly explains the methods for fixture improvement and accurate grinding methods study and the measure for the control and elimination of the burr in the course of the vale spool's precision working.

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通过筛选试验而研配的混合型防霉剂HF M - 01具有高效、低毒和安全的特点。

HFM-01 characterises in high efficacy, low toxicity and high safety, prepared by combining through screening testing.

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