... lines (6lines).UV co-extrusion for long life-span.we import the UV-PC coextrusion from Omipa in Italy ... .so far ,we have 6 lines,two for hollow sheet,two for slid sheet ... 3) ISO 9001: 2008 & ISO 14000 proved.and we also have UL,ASTM,ROHS,Russian construct test,ect. 4 ... condensation even with relative humidity as high as 80%.6. Thermal Insulation: the K-value of glass is ...