The first customer service person to answer the call is the first person responsible, and the first person responsible is responsible for answering, recording, handling, and tracking the caller's problems, and giving feedback to the caller within the promised time limit.

Rapid power restorationField service engineers quickly resolve customer product issues during on-site service and restore power to customers.

During the period of "three guarantees" of the product, under the normal storage, transportation, maintenance and use conditions of the customer, when the product cannot be used normally due to quality problems, free installation, commissioning and maintenance services will be provided.