Guangzhou Rack Technologies Electro-Mechanical Co., Ltd. was founded in Sydney, Australia on March 15th, 1990 and acquired by Preformed Line Product (PLP) Association April, 2000. Since foundation, our company has grown fast now become one of largest ...

Vstar Security is professional manufacturer and supplier for gsm cellular perimeter security alarm systems, The GSM periemter adopts invisible Active Infrared Beam Motion Detection Technology which effectively reduce the false by weather, rain, pets, ...