Umgca wokuveliswa kweglavu kwenzalo ikakhulu ukuvelisa iiglavu ze-nitrile ezihlangabezana nemigangatho yaseYurophu naseMelika. Umahluko kumtya oqhelekileyo wokuvelisa iiglavu zezi:
1. Impahla eluhlaza: ibakala lezonyango le-nitrile latex
2. Imveliso yokuvelisa: ukuchaneka kwezixhobo zelayini yemveliso
3. Amaziko axhasayo: ukongeza ukufunxa, ukomisa, kunye ne-ethylene oxide sterilization
4. Ifomula yemichiza: ifomula yokuthengisa iiglavu ezibolileyo
5. Ukuvavanya: ukuvavanya ngesandla iglavu nganye