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Working hours:Beijing time: Monday to Friday 9:30 a.m. to 6:30 p.m.We do not work holidays in China.If you are not satisfied with the product or service, please contact me, don't give us negative response, we have to give you a satisfactory solution.If you send us an email, we will reply within 48 hours on business days.Davin Technology Code of Conduct1. Customers first, employees second;2. Use all the time to hone your skills;3. Express all evaluations with encouragement;4. Because of trust, so simple;5. Live seriously and work happily;Thank you and thank you for your supportWe rely on our reputation and customer satisfaction for success.We want to get good response from you and a 5-star DSR rating.