Shenzhen chitongda electronic co., ltd (shenzhen wolf-guard security hi-tech co., ltd), having been established for 13 years, is a security products manufacturer who become forerunner in this line and own the most powerful strength in china. acting as a member of the council of china security industry association and a hi-tech entrepreneur, chitongda has an advanced concept in products development, strong capability in r&d and production, an original strategy in market spread.