... .CO-EX courier bag, good security & permanent adhesive bag. 3.anti-static,customise logo express ba Poly courier bag, express bag, and mailing bag, express delivery bag, mailer bag, ... , as per your logo artwork design.3) Material: LDPE or HDPE coextrusion material, outside-white and inside-grey ... materials, non-woven environment-protected materials, OPP, PP, HDPE, LDPE, CPP, PPU, PVC, PE/PO, PO/PE, CPE ...