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A6: Pre-sales service1. According to the needs of customers, carry out on-site technical consultation and collection of relevant technical data;2. Introduce and discuss the feasibility of the design scheme to customers;3. The design scheme shall be improved after consensus and confirmed by both parties.After-sale service:1. installation, debugging and training of operators and maintenance personnel;2. Three guarantees for one year, lifelong maintenance and spare parts supply;3. Respond within 2 hours of after-sales service and provide solutions;4. spare parts replacement, as well as the whole equipment provided, enjoy a one-year warranty (consumables are not included in this item);5.after-sales service personnel and equipment management personnel carry out regular daily communication, provide guidance for common faults and daily maintenance.