Rockwool core material: the density of 120kg / m & sup3; rockwool block interleaving laying ordinary rock wool insulation board, the fiber direction perpendicular to the sandwich, the lower surface, and closely connected to enrich the entire vertical and horizontal surfaces of sandwich panels . And wool and, through high-strength adhesive foaming agent to form an integrated roof insulation between the lower steel wool board between rockwool block, sophisticated production process to ensure high-density rock wool insulation body and the metal plate inside wall It can produce a strong adhesive force between waterproof rock wool insulation board, so that the rock wool sandwich panel has a good stiffness. Traditional coatings - several categories, the most exclusive fluorocarbon coating corrosion almost 20 years. Generally from the steel mills in the form of distribution to the rest of the roll. We often see color plate refers to the finished sheet thickness of about 50 ~ 100mm, it is the middle of the filler and the sides of the color steel components. Among them, the color plate thickness of 0.4mm, 0.5mm, 0.6mm different thickness, the intermediate layer may be polyurethane, rock wool or foam and the like. Because there are specific sections, so use color steel plant construction constructed quickly (such as when Xiaotangshan Hospital SARS), but low intensity. Colored steel substrate was cold-rolled substrate, galvanized substrates and galvanized substrates.