Koerner Chemieanlagenbau Ges.m.b.H

The company Sefiltec was founded in 1993 as a one-man business. In the field of separation and filtration technology, the company established itself until today. Through organic growth, we now count over 15 employees. Years of experience in filtratio

Weifang Guangyu Building Energy Conservation Development Co., Ltd. is a technology-based enterprise specializing in the development, research, production, and promotion of new green building materials for building energy conservation applications. Th