service policy


First, the service tenet

We adhere to the core concept of "customer first, service-oriented", and are committed to meeting customer needs, exceeding customer expectations, and establishing long-term trusting cooperative relationships through professional, efficient and considerate services.

Scope of service

Product support: Provide product consultation, installation guidance, use training and technical upgrade services.

After-sales services: including troubleshooting, maintenance, return and exchange processing and quality assurance.

Customer care: Regular follow-up visits, satisfaction surveys and holiday greetings to enhance customer stickiness.

Customized services: provide personalized solutions (such as enterprise customization, exclusive services, etc.) according to customer needs.

III. Service commitment

response time

Telephone/online consultation: Response within working days [specific time, such as 9:00-18:00] [specific minutes, such as 30 minutes].

Emergency troubleshooting: respond within 2 hours and provide solutions within 24 hours (except for special circumstances).

service quality

Service personnel are trained and certified to ensure that the service is standardized and technically sound.

Use original parts or standard-compliant replacements to ensure the quality of repairs.

transparent communication

Before the service, clearly inform the service content, fees and processes, and there are no hidden charges.

Regularly report service progress to customers to ensure transparency.

privacy protection

Strictly abide by data security regulations and do not disclose any personal information or business data without customer authorization.


If you want to know more about the details of a certain company, please visit our official website where there is comprehensive and in-depth information for you to check!


Copyright © 2026 Dwang Doors

Leave your message

If you have any suggestions or questions for us, please feel free to contact us!