Dotal New Material's after-sales service adheres to the principles of "verifiable issues, traceable batches, and actionable feedback," covering product quality issues, shipping & delivery anomalies, and technical support for actual usage. For common food packaging issues such as film feeding, tension, and heat sealing parameters on automatic packaging machines, professional technical recommendations are available. Issue type and assigned personnel are confirmed within 24 hours of receiving complete information, ensuring timely and effective resolution of client concerns.