1.Greatwall Ledlight Co.,Limited is invested and owned by Hui Zhou Cheung Shing Plastic Moulding Co.,Ltd.2. Mainly focuses on developing and producing LED display, LED lighting.3. ISO,DLC,LM79,CE, ETL,FCC,RoHS approval.4. Factory area cover 13,000 square meters(the building land is belong to our factory)5. Hui Zhou Cheung Shing Plastic Moulding Co.,Ltd. was found in 19936. Science precise industrial Ltd was found in 2006