Applications For packing coffee beans, tea, tea-bags, etc.Features 1. One-way discharge valve may release carbon dioxide but simultaneously cut off air from outside.2. Opening can be self-sealed
design to facilitate sealing repetition. Specifications 70g100g150g250g500g(thickness: 0.07 ~ 0.13mm)
One-way discharge valve may release carbon dioxide but
simultaneously cut off air from outside.