... bridges,valve basement systems,sewage systems,subways,retaining walls High ribbed formwork formwork mesh, hot-dipped galvanized steel sheets, ... bridges, valve basement systems, sewage systems, subways, retaining walls, nuclear power plants, shipyards, water pools and marine ... non-regular or bending pattern etc. as concrete permanent assembly-free formwork. Specification: Size(length ×width)Thickness(mm ...