Information about your grader MBU grader

on the net I accidentally found a little-known grader brand: MBU, I believe it is German or European, I think it was absorbed by bomag, you know on the net there are few specimens and no information on this brand, what do you know? thank you for your attention, I look forward to news information thanks https://www.fahrzeugbilder.de/1200/mbu-g-5-naehe-stadtbredimus-106591.jpg https://www.bauforum24.biz/forums/topic/24397-suche-teile-mbu-grader-g3/