... seal PP, PS, PE, PET material cups Foil Lids for Heat Seal 1 - Material: pure aluminum foil, PS/PP lacquer, PS ... damp-proof function4 - Vivid and bright colors printed5 - Applicable to heat seal or induction seal PP/PS/PE/HDPE/PET material ... cups6 - Widely used in packing of yogurt, ice-cream, beverage, cream butter, jelly, oil bottle, medicine bottles, etc7 ...