NM
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NM Ihuriro hamwe nigitagangurirwa cya NBR, Ubwoko 50, 67, 82, 97, 112, 128, 148, 168
Guhuza NM bigizwe na hubs ebyiri nimpeta yoroheje ishobora kwishyura ubwoko bwose bwimikorere idahwitse. Flexiblerings ikozwe muri Nitile reberi (NBR) ifite imbere murwego rwohejuru rwimbere rushobora gukurura no kurwanya amavuta, umwanda, amavuta, ubushuhe, ozone hamwe nudukoko twinshi twa shimi.
