English to Norwegian Tech/Engineering Construction / Civil Engineering trearbeid

I have no idea what it is.

I've found on the Internet that:

"Double-end tenoners are the “all-rounders” among wood processing machines. It can easily deal with longitudinal and transverse profiling in the through feed. The work pieces are conveyed past the various processing units on a chain conveyor. In this process, the work pieces are held by top pressure and pressed onto the reference surface, the chain conveyor. As a result the work pieces are always processed with the visible side downward;"