Floor 6, Block A, Jinao Tech. & Ind. Park, Dashuikeng, Guanlan,

Shenzhen P&H Electronic Co., Ltd, founded in 1999, began as the R&D manufacturer of sirens and set up a solid reputation based on the favorable design and exceptional reliability, whic...

No.1 Liqiao Square,  NINGBO, ZJ

ISO9002 China manufacturerEstablished in 1995,DSW Audio & Security Equipment Ltd. has become Siren ,Alarm , Horn speaker , Strobe light,Security products manufacturer in china....