... features: 1. Robust and reliable 2. Suitable for a wide spectrum of materials, including LDPE, LLDPE.3. Can produce ... bag,bubble envelopes,bubble packaging,bubble rolls,air bubble film,air bubble machine,air bubble sheet,bubble envolope,bubble wrap packaging, ... heat insulation, packaging.Bubble film in life application:Polyethylene air cushion film (also called polyethylene bubble film) divide into ...