HALFEN cast-in channels are the ideal basis for easy-to-install, adjustable connections to concrete. An easily removable strip filler provides protection against the ingress of concrete into the channel. After pouring the concrete, simple twist-in T-bolts can be adjusted along the length of the channel giving versatile anchoring positioning. The mainly standards are 52*34*6000mm,50*25*6000mm,50*30*6000mm,40*22*6000mm,72*48*6000mm,41*41*6000mm,41*31*6000mm,28*15*6000mm etc.