azotize

And the azotized silicon product has won the honorary title of national new product for the year of 1995.

化硅制品获得1995年度国家级新产品荣誉称号。

The chemical treatment main method has the cementation, Azotize, infiltrates the metal.

化学热处理的主要有渗碳、渗、渗金的方法。