We are Comtel-sign Co., Ltd, venture company. We have been manufacturing LED sign for 10years in Korea. We have one head office and two factories and 50 emploees have worked. We got Certificate of Excellent Product and deginated as INNO-BIZ. We have many kinds of LED sign like one color, three color, full color and spin-x products. They are for indoor & outdoor. Waterproof and dustproof are perfect We have our own factory, so we can do mass production. We share market over 60% in Korea and have exported our LED sign to U. S. A., Japan, China, Holland and Latin America. We have software and manual for English, Japan and China. We have wide experience in exporting our LED sign to outside. If you are interested in our LED sign, please visit our web-site, WWW. Comtel-sign. Com If you have any questions or information, please do not hesitate to contact us.