
Prima Classic Interior Steel Wood Spiral Stair. Customized Size: Floor to floor size customized to fit your specific job site requirements. Durable Materials: Constructed with carbon steel beams, solid wood or glass treads, and tempered glass. Versatile Finishes: Options include hot dip galvanizing, powder coating, painting, and clear/frosted/tinted glass. Comprehensive Warranty: Backed by a warranty period of more than 5 years for peace of mind. Easy Installation: Designed for straightforward installation to save time and effort. Safety Function: Engineered with safety as a primary function for residential and commercial use. Professional Design: Modern style design with professional engineering for spiral staircases. Global Export Experience: Exported to over 35 countries including USA, Canada, UK, and Australia.