What is the difference between a commercial rice cooker and a household rice cooker?

Please verify the following points and require itemized written supplier responses:（commercial rice cooker rice-cooker-comparison） Commercial rice cookers have larger capacity, heavier liners and heating systems for continuous service. Household units may fail under frequent high-volume use. Check capacity, liner coating, holding time, cord rating and spare parts. 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.