Model Number: 1220*2440,1250*2500 Usage: Outdoor Grade: First-Class Main Material: Poplar Formaldehyde Emission Standards: E2 Plywood Type: 13-Ply Boards colour: red Thickness: 9 to 27mm Moisture: Less than 10% Tolerance: +0.2mm for the thickness 6.0mm, +0.5mm for the thickness from9.0-21mm Density: Poplar: 550kg/m³ Birch: 720kg/m³ Pine: 500kg/m³ Combination: 680kg/m³ packaging:Inside is plastic sack, the outside are made of 3mm thickness plywood. Advantages: Lightweight: Better be used for high building and bridge construction Large extent: The largest extent is 1, 250 x 2, 500mm, reduce the juncture in order to improve the work efficiency. No warp, no distortion, no cleft, well water-resistant, long-playing used and recycled Easy doff the film, 1/7 of the steel film Do concrete: Beautiful and slippy surface, take out the second plaster, which can save 30% working times. Cauterization-resistant: The concrete surface with no polluting Well heat preservation, in favor of winter construction Do the plyform that can bend the plane Well construction capability Excelled bamboo plywood and armor plate on nailing, sawing, boring, and more. It could be processed to various forms according to construction requirements.