
Waterproof Backing Board for Stairwells in Public Buildings. Fireproof and Waterproof: Features fireproof, waterproof, lightweight, and environmentally friendly properties. Customizable Color Options: Available in blue, green, white, and other customizable colors. Customizable Thickness: Thickness ranges from 10mm to 100mm to meet specific project needs. High Stress Tolerance: Stress tolerance reaches up to 350kPa for durable performance. Level B1 Fire Rating: Meets national mandatory standards for combustion performance. One-Year After-Sales Service: Includes comprehensive support for one year after purchase. High Monthly Capacity: Production capacity ranges from 50,000 to 100,000 units per month. Dual-Base Structure: Operates with a collaborative R&D and production base in Henan and Hebei.