B300 floor spring is designed for glass doors, providing smooth automatic closing with adjustable closing force and speed; key points include fixed closing force EN3, suitability for single/double doors, two-stage speed adjustment, and a maximum opening angle of 170° with 90° hold-open. The page lists US32D satin stainless steel finish, EN 1154:1996 certification, and example limits of max door width 1,000 mm, max door weight 100 kg, and glass thickness 8–13 mm. Manufactured and supplied from the company’s Vietnam operations (Thu Dau Mot, Binh Duong) for export sourcing. Product Dimensions: