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Dr. Xuewen Wang received his B.E. in Mechanical Engineering and Automation from Taiyuan University of Science and Technology, Shanxi, in 2001, and the M.E. and Ph.D. degrees in Mechanical Design and Theory from Taiyuan University of Technology, Shanxi, in 2004 and 2008, respectively. From September 2008 to Jun 2010, Dr. Wang was in College of Mechanical and Vehicle Engineering, Taiyuan University of Technology working as Lecturer. From June 2010 to December 2016, Dr. Wang was in the same college working as Associate Professor. Since December 2016, Dr. Wang has been in the same college working as Professor. Dr. Wang focuses on the research of modern mechanical design theory and method. His recent research interests include discrete element of mining machinery, optimization design of mining machinery and equipment, digitalization and informatization of mining machinery and equipment, virtual reality design of mining machinery products, etc.
Dr. Jiacheng Xie received his B.E. in Mechanical Engineering and Automation from Taiyuan University of Science and Technology, Shanxi, in 2012, the M.E. and Ph.D. degrees in Mechanical Design and Theory from Taiyuan University of Technology, Shanxi, in 2015 and 2018, respectively. Dr. Xie has been in College of Mechanical and Vehicle Engineering, Taiyuan University of Technology working as Associate professor since 2018. His recent research interests include digitalization and informatization of mining machinery and equipment, virtual reality design of mining machinery products.
Suhua Li received her B.E. in Mechanical Design Manufacture and Automation Major from University of Jinan, Shandong, in 2018, the M.E. degrees in Mechanical Design and Theory from Taiyuan University of Technology, in 2021, Shanxi. She has been pursuing the Ph.D degree in Mechanical Design and Theory from Taiyuan University of Technology since 2021, in Shanxi.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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