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Research & Development
JOHSUN gives first priority to R&D in all its activities, because JOHSUN regards R&D as the basis and prerequisite of its development. This is why we established core relationship with Beijing Institute of Machinery Industry. JOHSUN's specialized R&D center is made up of dedicated engineers, technicians and journeymen of whom are professors and senior engineers.
If you can't find a suitable model from our catalog, our talented R&D team can design a custom-made power supply to meet your requirements. Please fill in the ODM table, we will answer you as quickly and completely as possible.

Customer Service
JOHSUN always seeks after the win-win solutions in the services to our clients, for we know what is the best for our clients is the best for JOHSUN. Just let us know your FEEDBACK or ORDER information, JOHSUN will only serving the clients whole heartedly, efficiently and professionally can we constantly promote the understanding and cooperation between us and boost the mutual confidence in each other.
The standard of JOHSUN Service is feedback to customers' inquiry within 8 hours. JOHSUN has set up detailed complete detailed files of customer information to ensure life-long sales service for JOHSUN products. JOHSUN also worked out an analysis system for evaluating our after-sales service so as to improve our work.

Information Download
For your convenience, we offer two means of viewing our product information. You can choose the online viewable option for quick browser based access, or download the entire CATALOGUE as a PDF file. Users of the free Adobe Reader can view and save these files to your computer. Click here to get a free Adobe Reader.

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