Steel Soundproof Door Mother and Son Door

Technical parameter:
1, finished steel wood composite sound insulation door
2, door frame structure: door frame thickness: 120mm, wall thickness, according to customer wall custom molding
Solid wood plywood connection technology surface decoration panel technology, custom molding guarantee
Smooth, open range: 0.80-1.0mm.
3, leaf structure: leaf thickness of 45mm, 50mm, 53mm, 64mm (two seal), precision cutting and forming
Board combination craft, 9mm plywood +2.0mm damping board +U type keel +2.0mm damping board +9mm base sound insulation board + decorative strip (decorative board)
The flatness tolerance range: 3 percent
4, filling material description: 2 damping insulation board +50mm fire board +30KG/ cotton
5, surface treatment: green paint process temperature + paint + lacquer etc.
6, low frequency filling material: high damping material
7, high frequency design material: aluminum sealing strip structure (patent technology)
8, the bottom of the door sill design process: design process automatic lifting type sealing strip, no traffic (sound insulation design for single and double 38 DB design: 35-38 dB)
No threshold design process: double automatic lifting type seal, fire place (sound insulation design for single and double open 40 dB design: 35-40 dB)