The unique concave-convex groove design at the interface of the cylindrical wood formwork makes the joints tightly combined to prevent running and leaking, which makes the concrete stripping film fast and beautiful, while also stabilizing and strengthenin
The surface coating is a phenolic resin adhesive with extremely strong water resistance. The core board is made of triammonium rubber (single layer over 0.3KG) and layer by layer over adhesive, which has strong gluing performance, which can increase the n
Waterproof glue is used from the core board to the panel. The core board is glued layer by layer to fully bond and improve the bonding strength by 5-10%.
Surface coated by a phenolic resin glue with strong water resistance, and the core board use melamine glue (single layer of glue up to 0.3KG), and the layer is over-coated.
The fixed-type formwork made according to a certain modulus utilizes the bendability of wood plywood to form different radians through high temperature and high pressure to achieve different diameters, so as to complete the formation of curved and toric b