... Filmsrigid films, shrik films, stretch films, plastic films, plastic composite films, paper-plastic composite films,aluminized films, aluminum foil, aluminum ... Packagespaper, plastics, rubber, paper, paper-plastic composite, glass, and metal packages, eg: bottles, containers,Techinical Parameter itemGBB-HGBB-AGBB- ... Our Laboratory: Our team: Heat Sealing Tester(ASTM) for plastic heat seal testing