What safety points matter for commercial ovens?

Please verify the following points and require itemized written supplier responses:（commercial oven oven-safety） Consider overheat protection, grounding, gas flame failure devices, ventilation, heat-resistant gloves and grease cleaning. Staff should know power shutoff, gas shutoff and fire extinguisher locations, with no combustibles nearby. 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.