Fence is normally composed of ball joint handrail and various decorative gratings or other forms of decoration, which is featured with modern appearance, easy installation and high strength. Stainless steel fence has an excellent performance of corrosion resistance, while carbon steel fence is durable in service without maintenance after hot-dip galvanizing. This type of product is extensively used for urban road, square, garden, water supply plant and sewage treatment plant, public works, and various industrial and civil buildings, etc.