When sourcing a Puzzle Parking system, you must prioritize lifting capacity (typically 2,000kg to 2,500kg per space) and lifting/sliding speeds to ensure operational efficiency. Verify the steel grade (preferably Q235 or Q345) and the surface treatment, such as hot-dip galvanizing, which is essential for corrosion resistance in outdoor or humid basement environments. Additionally, ensure the system uses PLC (Programmable Logic Controller) brands like Siemens or Schneider for stable automated logic.