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Shandong Yuanda-llongwill Educational Science and Technology Ltd.Customer Hotline：0086-400-6699-836
Address: 13-1, No.2 of Xinsheng Building, 1299 Xinluo Street,High-tech Zone, Jinan City
Email: service@llongwill.comTel：0086-531-88565204/88900288Zip Code：250100