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What brand is weisheng doors and windows?
Beijing VIOS Doors and Windows Co., Ltd., a third-line brand, is an enterprise integrating design, production and sales. VIOS doors and windows belong to the third-line brand. 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.