Color steel rock wool sandwich composite board

- Mar 16, 2018-

Color steel rock wool sandwich composite board: a new type of building material with color steel sheet for surface layer, rock wool, fire proof and flame retardant insulation material. It has the advantages of light weight, good heat insulation, sound absorption and sealing, good storage and storage, convenient construction, short cycle, low comprehensive cost, bending resistance, corrosion and beautiful appearance.