Hangzhou Dongxing Telecommunication Material Co.,Ltd is one of the professional China aluminum foil flexible duct manufacturers and suppliers,Website: , and equipped with a productive aluminum foil flexible duct factory and company, welcome to contact us.? Double side,Non-bonded,Aluminium foil? ?Thickness:30u-50u? ?Width:5mm-1000mm? ?ID:52mm±0.5mm or 76mm±0.5mm? ?OD:250mm-600mm? ?Color:Sliver?Single side,Non-bonded,Aluminium foil? ?Thickness:25u-450u? ?Width:5mm-1000mm? ?ID:52mm±0.5mm or 76mm±0.5mm? ?OD:250mm-650mm? ?Color:Sliver,Blue,Gloden