Ukusetshenziswa kwe-NBR yerabha Gasket
I-1, Ukwakhiwa kwangaphambili, inqubo yokukhiqiza ephelele, ukulawulwa kwenqubo okuqinile, ukuqinisekiswa kwekhwalithi okuthembekile nokuqhubekayo
2, Ukwakheka okuhlukile kuqinisekisa umphumela werabha wokunwebeka
3, uphawu olusebenzayo luxazulula inkinga yokuvuza kukawoyela
I-4, Ukusebenza okuhle kokuvikela uwoyela kanye nokungcoliswa okuncane kuwoyela we-transformer
5, Ukukhetha izinto ngokucophelela nangokuklama kahle kuqinisekisa uphawu olusebenzayo.