Gold, copper and silver metallic coating in far infrared area, the wavelength range of in excess of four mu m, a high reflectivity. As for the typical metal coating thickness, overall reflectivity of as much as 90%-ninety five%, high infrared reflectivity is such as very low emission rate (Lower-e), this https://metal-printing92570.blogdon.net/top-latest-five-beton-urban-news-51592412