http://www.bottles-packaging.c....om/product_detail.as

The pulp board is separated from the aluminum foil. The pulp board left in the cap, and the aluminum foil seal the bottle closely. Pulp Board/Wax 0.018mm/Alu0.020mm/PET 0.012mm/PE Seal layer 0.075mm.
--Seal oils, medicines, foods, beverages, liquors, pesticides, agro-chemical, and cosmetics.
--For most plastic (PE, PET, PP, PS), glass and metal containers.
--Waterproof, moistureproof, leakproof.
--Anti-acid, anti-alkali, anti-corrosion.
--Eco-friendly laminated.
--Customized printing is available.