China Manufacturer Wholesale Price Steel Structure Frame Zinc Coated Steel Profile C Z Galvanized C Z Purlins for Roof Support High Quality Warehouse Style House Plans Steel Structure Truss Purlin Hot Rolled Black Galvanized Channel Steel C Z Purlin
The up & down surface of this rockwool panel is Galvanized & Pre-painted steel sheets, core material is 5 components rockwool glue, it is formed by heating, foaming & laminating.