B330 floor spring is designed for wooden doors, offering smooth controlled closing with adjustable closing force and speed; listed features include EN3 compliance (EN1154), suitability for single/double doors, two-stage speed adjustment, max opening 170° (adjustable to 150°), and 90° hold-open (adjustable). The page lists US32D satin stainless steel base, EN 1154:1996 certification, and example limits of max door width 1,000 mm, max door weight 100 kg, and available wood thickness 30 mm. Manufactured and supplied from the company’s Vietnam operations (Thu Dau Mot, Binh Duong) for export sourcing. Product Dimensions: