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After-Sales Service

Dear Valued Customer,

Firstly, we would like to thank you for choosing our products and services. If you require after-sales service, please fill out the form below. If the form doesn't sufficiently describe your needs, please email us at ntfan@dartrich.com with "After-sales Service" as the subject. We will resolve any issues you encounter during the use of our products as soon as possible. Thank you for your support and trust!