Syrup 3.5x25 (YHB) Wunder YHB 3.5x25 is a mounting syrupto designed to fasten high quality and custom chunk materials in Sivri. This constructed surrounding steel material provides a solid and reliable holding in the work of Chichi. Provides easy and rapid installation of material with Sivri Tip design. This Syrup produced by the Wunder brand is long-term and corrosion. In home and commercial buildings, the wall and ceiling are widely used in ceiling.