Zhejiang Liyi Security Protection Co.,Ltd, one of the first regular members of "China Security Association" and one of information net members of China Security Department, is specialized in producing caution light series, vehicle-used electronic siren, police equipment and so on. We contribute a lot to pushing modernization for Chinese Police field, special vehicles field,etc. The products of our company enjoy high reputation both in home and overseas market. We innovate and break on and on in developing new product. And nine products have been gotten nation patent, this show client have affirm our product. Our products always were tested up to standard in the sample survey of China Security Department. We produce and manage with ISO9001 QUALITY SYSTEM CERTIFICATE which further certified that our LIYI company has been seeking the target of to create perfect quality with the power of technology.