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Continue to Chat(二手)Dell Precision 15 5000 (5510) Mobile Workstation laptop 15.6″-i7 6820hq\8G \512G SSD\M1000M 2G\4K touch 90%NEW https://www.c2-computer.com/zh-cn/products/dell-precision-15-5000-5510-mobile-workstation-laptop-15-6-i7-6820hq-8g-512g-ssd-m1000m-2g-4k-touch-90-new