Sandwich panel for roof 1.Fireproof 2.Heat Insulating 3.Density:36-45kg/ ... John zhuApplication:Steel house, suburban housing, villa, kindergarten, model house for apartment, ommercial building, remodeling of old structures, warehouse, steel structure ... Industrial Park, Boxing County , Binzhou, Shandong, China (Mainland) Zip: 256510 polyester sandwich panel for roof ,polyester sandwich panel for wall