Customer service hotline

   Tel: +86-377-63722999
Email: anna@cnjdsm.com


Address: Yingbin Avenue, Urban and Rural Integration Demonstration Zone, Nanyang City, Henan Province, 473000, China

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Technical support Pre-sales technical support and after-sales technical support, pre-sales technical support refers to the pre-sales technical support when the sales encounter unanswerable product problems; after-sales technical support refers to the after-sales service provided by the product company for its product users A form of service that helps users diagnose and resolve technical problems that may arise from products that have obvious symptoms during use of the product.