... weather fastness, etc.2. The foam sandwich panel has excellent insulating performance: heat insulation, sound insulation ... buildings, etc.Specification: Effective widthWall panel: 950mm 1150mm 1200mm Roof panel: 950mm 980mmLengthAccording to customer's requestMaterialsPolystyrene ... Nantong city, Jiangsu province, ChinaSkype: florawill85W: http://www.ntyncg.com , http://ntyineng.en.alibaba.comT: 86 513 ...