Our professional technical service team is skilled in solving product selection, product information consultation, product application and other issues, providing you with product technical support services and "Product Selection Plan".

Think what you want, give what you need. You only need to provide product usage technical specifications or drawings, and we at Langjing are willing to provide you with special customized solutions.

We are willing to provide training services for you, explaining the technical characteristics and application knowledge of the product, and providing you with deeper support for product research and development, design, and use.

You can contact us through email or customer service hotline, and we are willing to be your trusted partner.

E-mail： chinadongge@163.com Customer Service Hotline: 086-577-62759735

From the date of purchase, the warranty period is 12 months. If there is a quality issue during the warranty period, you can contact the sales department or regional general agent for a satisfactory response.

We have established a regular follow-up system for you to ensure communication and exchange with you.

Establish a follow-up contact system to record your usage, suggestions, opinions, etc. We will improve and enhance our service quality based on the follow-up situation, meet your needs, and provide the best service possible.