Gowell Intelligence Technology Co.ltd, founded in 2003, specializes in R&D?????????anufacture?????????ale and Service of Security & Surveillance products. Our core items are Door phone system and Surveillance products.Our products have been installed some large living gardens of more than 50 buildings , 5000 families in many citites of china. Technical service offices are set up in larger cities such Guangzhou, Beijing, Shenzhen, Nanchang etc for providing a full range technical supports to our installers ...