Steel Soundproof Fireproof Door Produced in China Protective Sliding Door Aluminium Doors Full Perimeter Acoustic Sealing Sound-Absorbing Core Material

Steel Soundproof Fireproof Door Produced in China Protective Sliding Door Aluminium Doors Full Perimeter Acoustic Sealing Sound-Absorbing Core Material. High Sound Insulation: Effectively blocks sound transmission with 30-45dB attenuation capacity. Customizable Dimensions: Door height 1800-5000mm and width 900-5500mm available upon request. Fire Protection Grade A: Constructed with steel and fireproof materials meeting Grade A standards. Flexible Opening Design: Swing style with optimized hardware for convenient operation despite weight. Reliable Sealing System: Uses high-quality rubber sealing to minimize sound leakage effectively. 12 Months Warranty: Comprehensive warranty coverage for all mechanical defects and parts. Multi-Industry Application: Ideal for labs, studios, hospitals, KTVs, and factories requiring quiet environments. ISO Certified Quality: Manufacturer holds ISO9001, ISO14001, and ISO45001 international certifications.