... and computerized corredction system 2.frequency converter 3.temperature controller Laminating Material: OPP BOPP CPP 20-70um ... oven guide roller, Electricity heating, 3 part independent control, temperature can adjust, oven length 6.5m, bottom open.Second ... powder tension control, Max unwinding width: 600mm, Max unwinding diameter: 600mm2. Hot drum use hot oil heating, temperature can adjust ...