... Material Types:200ml, 250ml, 500ml, 700ml, 1000mlMaterial Structure:1. 3 PE layers: water proof, antiseptic, increase strength and thickness, protect ... printed layer2. 3 Bounding layers: reinforce the solid delivery ability between PE and paper, and aluminum foil3. Paper: printed layer and ... PE: modify heat-sealing performance, increase sealing quality aseptic paper rolls for tetra brick carton