[Permanent formwork concrete structural walls - Western Australia - Trustruct Structural Solutions. Permanent formwork for shop drawn concrete structural walls – AFS LOGICWALL is manufactured in Western Australia by Trustruct Structural Solutions – an innovative, fast alternative construction method of creating high performance Fire and acoustic rated load bearing concrete walls in-situ. Also available from TSS is the AFS REDIWALL – polymer formwork system – the extruded PVC formwork has inherent water resisting properties and does not need applied finishes.]