... advertising 5 3 year warranty 1. Description of front acrylic a4 1) Adopt high-quality heavy-duty aluminum for frame. ... marks;13) Standard poster sizes A0, A1, A2, A3, A4, B1, B2 and custom sizes up to poster size of ... store, company signboard, commercial centre, supermarket, airport, station, subway, bank, bus station, large exhibition project etc.2. Techniquie Parameter Light sourceSizeFrame ...