fix led advertising display with double sides

ShenZhen HaiSheng Optoelectronic CO.,LTD is a professional LED Display and LED Lights Manufacturer. It's a hi-tech enterprise which is specialized in researching, desiging, manufacturing and exporting all kind of LED Products. With qualified talents, high technology and aboundant funds, we have many offices and branches in most cities of China, so we can offer rapid and perfect service to our clients. Our Company has a high-quality professional technicians and advanced modern production equipment : SMT machine,injection molding machine, COB machine, high temperature aging furnace, TABLE machine (point-by-point brightness debug) reflow soldering machine and serveral wave soldering machines, PCBA lines, automatic packaging production lines and 1000sqm aging vertical testing stand. Fully implement strict ISO9001-2000 quality management, and strive to make every piece of LED displays, LED unit boards, modules, lighting to be the best, our products have passed the European CE, American UL certification and other related certifications. All the products researched and developed by HaiSheng have reached the advanced level in the international market. Relying on the advantages of the strategic union consisting of the company, the domestic and foreign company have developed into a genuine cross-century modern enterprise with resource sharing, division & coorperation, advantages complementary and high-performance operation. At present, HaiSheng Optoelectronic CO.,LTD have formed a"Genelite" brand of LED Displays with features of low attenuation, high brightness, anti-static, good stability, high gray level, and had got good reputation from our customers. Our products mainly applied in City Square LED Display, Highway Advertising LED Display, Shopping mall LED Display, Stadium LED Display,etc. It had been widely used in advertising, bars, airport, bus station, ports, stadiums, banks, schools, factories, post and telecommunications, shopping malls, hospitals, industry and commerce, taxation, customs,monitoring centers,etc. The products have been exported to United States, Russia, Britain, France, Australia, Greece, Italy, Japan, Korea, Taiwan, and Kazakhstan,etc. With strong financial, professional technique strength, stable quality, fast and perfect service allows users to have the most stable and cost-effective products. Our company is dedicated to serving clients of the whole world with clear high-quality orientation, continuously innovating techniques and internationally synchronous management concepts.