When sourcing aluminum cabinets, prioritize the grade of the aluminum alloy, typically 6063-T5, which offers excellent structural strength and corrosion resistance. Pay close attention to the panel thickness, where a minimum of 1.2mm to 1.5mm is recommended for load-bearing frames. Additionally, verify the surface treatment technology; powder coating or fluorocarbon (PVDF) spraying ensures the cabinets remain scratch-resistant and do not fade in high-heat kitchen environments. Ensure the hardware components, such as hinges and drawer slides, are made of 304 stainless steel to prevent rusting in humid conditions.