... Can be heat sealed to plastic, paper, glass or metal containers. And used for yogurt, juice, snacks, confectionary Henan Oneworld industrial ... sealed to plastic, paper, glass or metal containers. And used for yogurt, juice, snacks, confectionary or similar products2. Feature:1) non ... 30 to 45 micron4. Heat Seal Materials: PS/PP/PVC/PET/PE plastic materials, glass materials and also special protective ...