How should I read the power, capacity and pressure parameters?

Please verify the following points and require itemized written supplier responses:（commercial electric pressure cooker pressure-cooker-parameters） Capacity is shown in liters, power in kW or W, and pressure affects cooking speed. Large models may require 380V power, so verify voltage and breakers first. Do not focus only on power; review capacity, pressure release, heating uniformity and safety features. Define capacity, accuracy, materials and operating environment before requesting quotes on a uniform basis. Request specification sheets, test reports, certificates, maintenance manuals and spare-part lists. During acceptance, verify appearance, dimensions, functions, safety protection and packaging, and keep test records. Do not compare unit price alone; include customization, freight, spare parts, after-sales support and downtime risk. Keep written records of inquiries, confirmations, FAT, acceptance and warranty commitments.