"EC210B" is a model number for an excavator produced by Volvo Construction Equipment.
"K3V112DT-1XER-9N24_2" is a model number for a hydraulic pump produced by Kawasaki, specifically designed for use with the EC210B excavator. Here is a basic specification for this model:
Displacement: 112 cc/rev
Max. pressure: 34.3 MPa
Max. speed: 2600 rpm
Weight: 95 kg (without oil)
Overall, it seems like the alphanumeric code you provided is a model number for a specific hydraulic pump designed for use with the EC210B excavator, and the specifications listed above are specific to this model.
