AOP Precast produced cold rolled and hot rolled cast-in channel to cast in concrete for various fixing system applications. AOP cast-in channels are the ideal basis for adjustable fixing and connection and easy to install. A full foam filling provides protection against the concrete or dirty into the channel. AOP cast-in channels can be used to create any construction fixing and connections, e.g. facades, precast concrete construction, residential construction and traffic engineering (e.g. tunnels), and for lift constructions, infrastructure projects such as bridges or crane runway fixings.