Composited epoxy resin cable tray has high strength mechanical,is one of all kinds cable tray which have the most high strength mechanical,cable tray not only have the metal rigidity but also have nonmetallic tenacity,good corrosion resistance,high strength for ageing resistance.The price is ok,lower than the composited epoxy resin,the special making progress and special material made the product have the special function,the corrosion resistance is best,the mechanical strength is highest,working life is above 30 years,not aging,not fastness,price is ok.The composited epoxy resin composited type cable tray best fit for used under the corrosion environment,large span and heavy load conditions.