GEKA Hydraulic Steelworkers for Cutting, Notching, etc. Models MicroCrop-36, Minicrop, HYD-50, HYD-70, HYD-100 and HYD-150.Operation Instructions GEKA Hydraulic Steelworkers for Cutting, Notching, etc. Models MicroCrop-36, Minicrop, HYD-50, HYD-70, HYD-100 and HYD-150. Detailed Operating Instructions Manufacturers: Geka Models: MicroCrop-36 MiniCrop HYD50 HYD70 HYD100 HYD150 Contents: Operators Manual