... /12/15/18/21/25mm 3)Core:poplar,hardwood,birch... concrete shuttering plywood with anti-slip function The Feature of film ... warping, no fracture, not out of shape.2. Transference to concrete is set up very easily, so good for construction work ... the project can also be continued.4. After installation of concrete, the surface looks like a mirror. (the cement does not ...