When sourcing an Electric Flat Car, you must prioritize the Load Capacity, which typically ranges from 1 ton to over 500 tons. Ensure the Table Size matches your cargo dimensions. Crucially, evaluate the Power Supply Mode: Battery-powered models offer high flexibility without cables, while Cable Drum or Rail-powered versions are better for continuous, high-frequency operations. Additionally, check the Running Speed (usually 0-30m/min) and whether it requires Steerable (Trackless) or Rail-guided movement.