Which brand is Biyun doors and windows?

It's a first-line brand. Guangdong Biyun was established in Guangzhou in June 2000. It is a first-line brand of a comprehensive and diversified enterprise group integrating R&D, manufacturing, engineering projects and national chain. Doors and windows are divided into enclosure components or partition components according to different positions, which have different design requirements and have the functions of heat preservation, heat insulation, sound insulation, waterproof and fire prevention respectively.