Main specification: 1. size: 1220 x 2440mm, 1250 x 2500mm, 1220 x 2500mm, 915 x 1830mm 2. thickness: 12mm, 15mm, 18mm 3. Moisture content: <=10% 4. density: 0.75g/cm3 advantage: 1. light: More suitable for constructing in the skyscraper and bridge 2. big breadth: reduces the quantity of seam. 3. not warping, not out of shape, do not fracture, able to bear swimming skill can fine, turnover is high in number of times. 4. it is easy to take off the membrane, time is only 1/7 of the steel mould 5. make branch water concrete is surface smooth and beautiful to pour things, decuct wall two crafe of plastering. 6. it is good to keep performance warm, is favorable to winter construction, whether construction the performances is the fine, nail,nail. saw. hole etc. 7. can make the template change according the different kind of shape.,