1,Structure:VMPET+Bubble+Bubble+VMPET 2, Size:1.2mW*30m / 40m L 3, Can ... 4,Usage: Pack & make sunsha Name: Aluminum Film Bubble WrapperStructure:Metallized PET+Bubble+Bubble+Metallized PETBubble size:2.5-8 mm *10 / 20 ... (1),Roof,Underlay,Under Concrete & floor Insulation; (2),Attic,Crawl Space,Stud Wall ,Metal Frame Building Insulation.2,Wrapping (1),Protective ...