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Our History 2012 year Jiulong Optoelectronics established a sales department in Shenzhen and started its LED display sales business. 2014 year Jiulong Optoelectronics Co., Ltd. was formally established. In the same year, it began domestic research and development and overseas sales of LED displays. 2016 year To expand development, the factory moved to Hanhaida High-tech Park in Guangming New District, Shenzhen, covering an area of 3,000 square meters. 2016 | 2018 year The company implements ISO90001 quality management system and obtained ISO management ... [Details] |