Only two million points for a free silver fondue set!

两百万点就可以免费换得一套银制火锅组!

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A method is proposed to determine free native silver and free silver sulphide in lead - zinc concentrate.

拟定了分离测定铅锌精矿中游离硫化银和游离自然银的方法.

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A cyanide free silver electroplating process with 5, 5 - dimethyl hydantoin as coordination agent is studied.

研究了5, 5- 二甲基乙内酰脲为配位剂的无氰镀银工艺.

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Development process and status guo of cyanide free silver plating technology were introduced.

介绍了无氰镀银的发展过程和技术现状.

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The process of cyanide free silver pulse electroplating is investigated in 5, 5 - dimethyl hydantoin ( DMH ) bath.

研究了5, 5- 二甲基乙内酰脲 ( DMH ) 无氰脉冲镀银工艺.

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Basic principle and technology of the cyanide free silver brush plating on copper substrates are researched.

探讨了铜基无氰电刷镀银的基本原理和施镀工艺.

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Ten typical formulas and some kinds of additives used for cyanide - free silver plating were introduced.

综述了十种典型的无氰镀银工艺配方和无氰镀银所采用的添加剂类型.

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