KONZESYS owns the expertise in control system and well known for innovative capability as well as being a worldwide leading manufacturer. The complete structure and integration of R&D and sale...

Building A, Huali Industrial Park, 28th District, Baoa

VAN GROUP (HK) CO., LIMITED.Shenzhen VAN Electronics CO., Ltd. VAN is a high-tech enterprise specialized in the research, development, manufacturer and sales of Video Door Phones & Burglar Ala...