MECHANICAL ZINCIFICATION TECHNOLOGY FOR HIGHWAY GUARDRAIL BOLT
高速公路护栏螺栓机械镀Zn生产工艺

The surface Zn coating by mechanical zincification technology was suaessfully applied for highway guardrail bolt.This technology has many advantages,in comparison with hot dip plating,such as good assurance of coating quality,esay control of coating thickness,excellent corrosion resistance,high production efficiency, low cost, and simple post-treatment.