... films, for instance holding temperature, anti humid, antifreeze, anti-rust, insulation oxygen, oil resistive and so used for light and heavy ... packaging, for example fresh fruits, meat-feeding, salt vegetables, fresh milk, drink.Main Technical Parameter ModelGD-G1000GD-G1200GD-G1500Screw diameter¢50mm ... 3-layer coextrusion film blowing machine/film blowing machine/insulation blowing machine