Shanghai 3EN Environmental & Energy-Saving Engineering Co., Ltd. is a integrated group focusing on environment and energy-saving area, our head office is located at financial center of Lujiazui in Shanghai. Since established in 2004, Shanghai 3EN Environmental & Energy-Saving Engineering Co., Ltd has grown into a group company including two companies and three factories that located in Shanghai, Chengdu and Guangzhou. Our main product is:1.Environmental engineering service provider including wastewater and exhaust treatment and solution. 2.Energy saving product supplier: LED product R&D, manufacturing and distributing. Our products range from small LED modules to complete, integrated display systems. Main lines include outdoor and indoor full color LED displays, LED Tube lighting, LED Lamp, LED sign, and LED modules.We have obtained the ISO9001:2001 certification, passed CE, UL, RoHS Test. We were awarded "New & Hi-Tech Enterprise of Returned Students".Our product qu... [Details]