Internal corner for skirting board channel, SL 20x50-IE, color: Alpine White 9010. This internal corner is designed for corner bridging and concealed connections, featuring a hood shape that is more appealing and cleaner than any miter cut. Additional components for the skirting board channel system include an external corner, an end piece, and a coupling to connect two upper parts. There is also a flat angle for transitioning to Mini 15x50 channels or for vertical cable routing along the wall. Depending on installation requirements, single or double scaffold carriers are available, and the scaffold carriers can be universally equipped with all scaffold carriers of the M45 modular system. SL 20x50-IE.