O & K
Orenstein & Koppel (normally abbreviated to "O&K"), is a major German engineering company and manufacturer of heavy equipment.
O&K L20.5 bulldozer at Luxembourg, 2007.
O&K L20.5 bulldozer
Orenstein & Koppel L20.5 bulldozer at Luxembourg, 2007.
See also picture #52
O & K K40
O & K K40 at Antwerp, Belgium 2009.
O&K RH 9.5 excavator
A used O&K RH 9.5 excavator (owner Afezo bv) seen in Amsterdam, The Netherlands.