What ports are there in China?
China has a vast network of ports due to its extensive coastline and strategic importance in global trade. Here are some notable ports in different
How to choose hearing protection products
Choosing the right hearing protection products is crucial to safeguard your hearing in noisy environments. The choice depends on several factors, including the noise level,
ANSI S3.19-1974
ANSI S3.19-1974 is an American National Standard for hearing protection devices (HPDs). Specifically, it provides guidelines and specifications for the measurement of the attenuation of
EN 352 – 4
EN 352-4 is a European standard that specifies requirements and testing methods for level-dependent hearing protectors, often referred to as “Level-Dependent Earmuffs.” These hearing protectors
EN 352-3 Protège-oreilles montés sur les casques de sécurité
EN 352-3 is a European standard that specifically addresses ear muffs fitted to safety helmets. This standard provides requirements and testing methods for earmuffs that
EN-352 earplugs
EN 352 is a series of European standards that covers various types of hearing protection devices, including earplugs. These standards specify requirements and testing methods
3M
Ansell
Dellta Plus
Drager
edelrid
Honeywell
JUTEC
lakeland
MSA
Nouveau cochon
Weldas
French 
English 
Spanish 
German 
Russian