Noise reduction rate: 29
Executive Standard: 1
Function: Anti-noise and hearing protection
Scope of application: Industrial learning life
Connection line: none
How to use: Rub
Efficacy: Noise reduction
Packing: plastic bag
01 / years of R & D experience
Has many years of experience in the development of protective equipment
2 / Strict noise reduction standards
After strict noise reduction effect test, it complies with relevant noise reduction regulations.
3 / Quality testing and reliable quality
Layer by layer test and test, check every detail, the quality is trustworthy.