涂层顶针特点：

1. DLC涂层具有硬度高、摩擦系数小等优点，对提高耐磨损性、生产效率以及产品质量都起很大作用;

2.改善耐腐蚀性：工程塑料等在成形时，会产生大量的气体，DLC涂层可防止顶针受气体的腐蚀。

Coating ejector pin feature:

1.The advantage of DLC coating with high hardness ,small friction coefficient to help enhance productivity and products quality .

2.Improve corrosion resistance ,Such as engineering plastics when shaping to produce air ,DLC coating can prevent ejector pin from air corrosion resistance.