故镀锌钝化处理是必不可少的步骤。
The principle, technology and equipment of machinery galvanization are introduced simply.简要介绍了机械镀锌的原理、工艺及其设备。
According to the character of the Plates plants. determining the quite reasonable galvanization craft.根据各镀种的特点,确定了比较合理的电镀工艺。