1) 7X24 hour technical service hotline to answer any issues encountered during equipment operation at any time 2)Supu has a professional technical team to guide installation and provide free operation and maintenance training to customers, ensuring the stability of actual operation. Regular technical visits are also provided to assist customers in effectively running equipment. 3) The Supu factory has sufficient reserves of commonly used and vulnerable parts and has a dedicated after-sales department to promptly send them to customers to avoid downtime and economic losses caused by untimely replacement of parts. All components are provided by suppliers who have been cooperating with SAP for many years, with reliable quality. At the same time, we suggest that customers order equipment with some vulnerable parts available for timely replacement.