access panel easy to be installed. and convenient.maintenance as well as system testing of air pressure and airflow access panelProduct Name: INSPECTION DOOR, ACCESS PANELS.Material : Aluminium alloy and gypsum boardStandard size: 200*200mm, 300*300mm, 400*400mm, 450*450mm, 500*500mm, 600*600mm. Type :air conditioner partsAdvantage: Waterproof, Fireproof, weightless.Packing detail :cartonDelivery ...