OHE trademark was first registered
Developing of high-pressure hoses
Manufacturing of the first 12-function direct control unit
Development of the pilot control system
Development of the electro-hydraulic control system
First certification to DIN ISO 9001 standard
Certification of our products to ATEX standards
Development of control systems for low seam operations
Completion of the new, state-of-the-art factory
Development of the quick-supply unit
Fitting of an 8.8 m roof support with control units and valves
Integration into the Huahai Group
Enwicklung Cut-off/Unloading Ventil
Introduction CAD/CAM system
