spray painting with resin,smooth and easy to clean. colourful and it can be made at customeers' request. adapts to all kinds of water quality with the better properties than various steel and aluminium radiator. corrosion resistant with over 50 years of using life. changeable shapes,can be processed freely to fit for the structure of the room. bearing capacity up to 1.0MPa, fit for the high-rises. reasonable price.