MARINE PLYWOOD Weather-proofing and Water-proofing For concrete formwork use, For construction use Marine plywood:size: 1220x2440mm,1220x2440mm, 1250x2500mm, 915x1830mmthickness ... is set up very easily, so good for construction work. (There is no need for any transference preparation.) It is easily to ... .)7. It can be used for a long time, and for the initial price paid for the material, you will feel ...