Yancheng Dongshan seiko at eight o'clock. According to relevant public information, Yancheng Dongshan Seiko is at 8: 00 am-12: 00 am, at 1:00-5:30 pm and at 6: 00-8: 00 pm; Every day 10 to 12 hours; Rest every week 1 day, rest for 4-6 days every month. Yancheng Dongshan Precision Company mainly produces computer motherboards, Apple's new series of mobile phones and its own brand notebook computer accessories.