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Support | Joint System |
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| For technical support please call： | Engineering concerns can be e-mailed to： |
| 010-82783031(9:00AM-5:00PM) | wei.sun@jointsc.com |
| 010-62970998(9:00AM-5:00PM) | For Sales related inquiries contact： |
| tomsun@jointsc.com |
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All right reserved by Joint System (Beijing) Co.,LTD. |