Buyers must confirm the specific model compatibility (e.g., Howo 7, Howo A7, or Howo T7H) as mounting points vary. Key technical focus areas include stamping thickness (typically 1.2mm-1.5mm) for structural integrity, electrophoretic painting quality to ensure corrosion resistance, and the completeness of the interior trim, including the dashboard, seats, and sleeper berths. Ensure the assembly includes hydraulic tilting systems and air suspension components if required for the specific vehicle configuration.