Nm coundlings
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Nm condungs na ududo n 'ub ubr, 67, 82, 97, 112, 112, 128, 148, 148, 168
NM Cuplings mejupụtara ụlọ abụọ na mgbaaka mgbaaka nwere ike ịkwụ ụgwọ ụdị mkpanaka aro niile. A na-eme nke nje vitale (NBR) nke nwere njiri mara ime dị elu nke na-enyere aka ịbanye na mmanụ, unyi, mmiri, ozone na ọtụtụ ndị na-eme ihe nkiri kemịkalụ.