... birch or composition core 2) Wearing, crack and alkaline resistant film faced plywood,brown,black,construction plywood1) WBP glue, poplar, ... and alkaline resistant 3) Useful in concrete construction, the film faced plywood can be smoothly concreted 4) Special waterproof ... of concrete 5) Foreign brown and black film or local film 6) Environmentally friendly, lowest formaldehyde size: (1, 220 or 1, 250 ...