When installing guardrail will use a lot of screws to fix the road fence, so that the screw for its installation also played no small role. And when in their care, many people have overlooked for its maintenance, which resulted in a situation where the fence project, even if well maintained fence fence, but a long time should be replaced. For this screw is the most important conservation moisture. In the purchase of fence sections, you will find that some sections are after phosphate treatment. So, what is the phosphate treatment, why should its phosphate processing it? Phosphate is a chemical and electrochemical reaction to form phosphate chemical conversion coating process, the phosphate conversion coating formed called phosphate coating. The main purpose of the phosphate is: to provide protection to the base metal, to a certain extent, to prevent the metal from corrosion; primer before painting for improved corrosion resistance and paint adhesion layer; the metal cold process from antifriction lubrication. Usually after phosphate treatment profiles can enhance coating film (such as paints and coatings) and the binding force between the workpiece and improve its decorative surface coatings and corrosion resistance, but also enhance its resistance to corrosion protective. Fence custom, Puyang guardrail, fence fence Xin Xin bar provided by Xinxiang City Metal Products Co. Xinxiang City Xin bar Metal Products Co. (www.xlhlc.com) strong, credible, Henan Xinxiang Fence, bar, network, and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead you hand Xin bar fence and into the brilliant, for a better future!