We provide the oxygen permeation testing services of packaging materials for our clients. We have our own laboratory. common testing materials: pe, ldpe, hdpe , pp , bopp, cpp, pet, pa, evoh, eval, pvc, pvdc, al, kop, kpet, kpa, kmf, aluminum plated pet, aluminum coated cpp, bopp with matte surface treatment, pa/al/cpp , pa/pu , pet/al/pa , pe/al/pet, five-layer co-extrusion film, seven- layer co-extrusion film