BIV Ventilatoren

Shenzhen Changlong Technology Co., Ltd. is an enterprising technology-based private enterprise established in 2003. It has been committed to the research and development of environmental protection technology and technical services, serving customers

ABB is a globally leading technology company in the fields of electrification products, robotics and drives, industrial automation and power networks with customers in the energy supply, industry and transport and infrastructure sectors. Building on