We will provide free samples and test reports to customers before sales, and upon request, an authoritative third party testing report can also be supplied. We also provide solutions, product application advice, operating methods, and staff training.

We have enough products in stock to be able to fulfill urgent orders, and provide one-stop service, accessories, solutions, installation tools and spare parts. If necessary, we can send technical personnel to the customer's site to help installation. After the sale is completed, we will gather feedback on customer satisfaction, and improve our service quality according to said customer feedback.

JDD has certified by ISO9001:2015 quality management system, and IATF16949：2016 automotive quality management system. We have 4 core technical engineers, and 66 engineers R & D team who has the ability to develop special performance products according the customers requirement and market demand. We have our own laboratory for testing flammability, wear resistance, tensile strength, aging resistance and other major key performance. With a reputation for quality and reliability, our products are widely used in the railway, automotive, communications, aviation and other industries that have strict quality requirements.

If for some reason, a quality problem is found in any of our products we will provide the replacement first then find the root by 5 why method and provide 8D report, then follow up the improvement effects.