Grooved plates are used for designation tags. They are used for designation different media.
Colour for grooved plate for tube installations is according to standard DIN 2403.

Clear desgnation tube installation on line media is interest of safety, maintenance and protection against fire. In case of fast intervention the designation tags gives us information about media in marked pipeline. They can serve also like advertise for company.

The most practical machine for signage showed to be DYMO (or similar), which uses 9 milimeter wide self adhesive tape, which we tape into the groove on the coloured plate. In case we need more room, we insert the text on the other side of the inscription plate.