The traditional coating is divided into several categories, and the most high-end is fluorocarbon coating, which can be anticorrosive for almost 20 years. Generally distributed in the form of rolls from steel mills to various places. The color steel plate we often see refers to the processed plate, the thickness is about 50~100mm, and it is composed of the middle filler and the color steel plate on both sides. Among them, the thickness of the color plate is 0.4mm, 0.5mm, 0.6mm and other different thickths, and the middle layer can be polyurethane, rock wool or foam. Because of the special profiles, the plant built with color steel plates is built very fast (such as Xiaotangshan Hospital during SARS), but the strength is low. The substrate of color coated steel plate is cold-rolled substrate, hot-dip galvanized substrate and electroplated zinc substrate. The types of coatings can be divided into polyesters, silica-modified polyesters, polydifluoroethylene and plastisol. The surface state of color coated steel plate can be divided into coating plate, embossing plate and printing plate.

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