Concrete shuttering - has tough elastic plank-type components with diverging air passages

摘要: The shuttering is for sections (1) detachable from each other, comprising a rigid frame (2) in which components (3) are inserted. plank-type of tough elastic material, and contain diverging air passages (5, 9). inner ones (5) allow escape liquid the concrete when pouring. USE/ADVANTAGE - For reinforced-concrete structures. Avoids formation pockets.