Near Matches
Ignore Exact
Everything
2
NRR (thing)
See all of NRR
, there is 1 more in this node.
(
thing
)
by
AU
Thu Aug 02 2001 at 23:12:14
Noise Reduction Rating
for
ear plugs
.
See:
Sound Attentuation Data
Sound Attentuation Data
FRRYYY
Etoile
NPR