high ribbed formwork / high ribbed mesh / fast ribbed formwork / perforated metal sheet concrete formwork/ formwork panel High Ribbed Formwork is manufactured from hot-dipped galvanized steel sheets. Because its meshes and U patterns, it has better anti-stress capability and forming flexibility than normal metal lath. This product has excellent engineering quality, construction security and widely used in tunnels bridges, valve basement systems, sewage systems, subways, retaining walls, nuclear power plants, shipyards, water pools and marine engineering works and high rise building projects and non-regular or bending pattern etc. as concrete permanent assembly-free formwork.