After testing, our earmuff products with the noise reduction rating of 23dB cover EM-5001B foldable earmuff and EM-5003 earmuff:
Guangzhou J&Y Safety Products Manufacturer Co., Ltd.
Tel.: +86-20-36853918
Fax: +86-20-36853898
Contact Person: Jay
E-mail: sales001@cn-safety.com
Skype:
Jessie-jykingkady
live:203c17c9944e2aff
Whatsapp:
+86-15914403452
+86 18520214532