Soundproof solution:
≥20 dB, 80Hz to 100Hz;
≥25dB,100 to 200Hz;
≥35db,200 to 400Hz;
≥45db,400 to 1500Hz;
≥50dB, >1500 Hz
Sunny Lee
Mob(WeChat) : 180 3817 0771
QQ:710061818,
E-Mail:info@szcitech.com
Address: 14 floor, BTR new energy building, Guangyuan 4th Road, Fenghuang Street, Guangming District of Shenzhen,China.