... radiation, conduction and convection.Characteristics:· The bubble contains an air retention layer designed to ... AL / bubble / AL (bubble: dia.: 10mm, H: 4mm), (bubble: D: 10mm, H: 2.5mm)2. AL / bubble + bubble / AL (bubble: dia.: 10mm, H: 4mm), (bubble ... : dia.: 10mm, H: 2.5mm)3. AL / white fire-retardant bubble / AL with blue color (bubble ...