Soundproof Vertical Accordion Sliding Windows And doors, And Doors Thermal Break Aluminum doors/

Germany-class quality assurance

Germany imported fire resistant and sound insulation core board, Germany thermal expansion smokeproof airtight strip, and Germany original automatic soundproof latch, all these components ensure excellent performance on smoke/flame retardant, as well as sound insulation performance, so your star hotels can use it confidently.

Silent sound insulation system solution

The new technology and new material obtained excellent STC data on computer calculstion, and the lab testing results highly consist on such Sound transmission conefficient.The thermal-magnetic damping sealing tape increase Sound transmission coefficient while efficiently reduces the noise from door page collision.

Based on acoustic Mass law, G50J-1 is a composite of different materials in different properties. When treated with special vibration resisted damping structure , G50J-1 lessens opportunity of acoustic superposition which prevents substantial resonance, improving the sound it is able to insulate(STC). G50J-1 is designed to adopt unbalanced acoustic structure, filling with inflammable high dense micro-pore fiber acoustic material. Though this door is only in thickness of 50mm, G50J-1 functions excellently in insulating sound from 250 to 5000Hz.