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Eco-Friendly Moisture-Proof Acoustic Gypsum Fibre Board for Interior Partition Walls. Eco-Friendly & Fireproof: Formaldehyde-free, moisture-proof, fireproof, and deformation resistant for safe indoor use. Labor Saving Design: One board replaces wood base plus gypsum board, saving labor and ensuring durability. Direct Manufacturer: Direct factory with R&D, production, and sales, eliminating middlemen for better cost performance. Rapid Delivery: Regular sizes shipped same day or next day from large Hebei warehousing center. Full Customization: Supports custom size, thickness, zinc coating, and special shapes based on drawings or samples. 24-Hour Support: One-stop solutions including selection, quotation, delivery, and installation support.