1. E ai ki te paerewa o te ahumahi miihini, ko nga momo flange he: momo peretiflange flat-welded, kopa-weled flange, flange whakauru, kopa-paiherea momo mowhiti-pereti karekau karekau karekau, kopa-paariki momo mowhiti-pereti momo karekau karekau wetewete, kopa mowhiti-pereti momo karekaukarekau ringaringa, uhi flange.
2. Momo flangekia rite ki te tikanga o te ahumahi matū: paraharaha papaflange fehokotaki'anga(PL), me te papatahikarekau kaki fehokotaki'anga(SO), flange whakauru (IF), flange miro diameter (Th), me (WN) flange reke fehokotaki'anga,flange fehokotaki turanga(SW), te whakakai reke fehokotaki'anga flange wetekina (PJ/SE),mowhiti fehokotaki'anga flat flange wewete(PJ/RJ), uhi flange (BL), uhi flange ararewa (BL (S)).
3. E ai ki te paerewa o te motu, ko nga momo flange he: papa peretiflange fehokotaki'anga, kaki papatahiflange fehokotaki'anga, kaki kakiflange fehokotaki'anga, flange whakauru, flange miro, kopa kaiki fehokotaki'anga flange, reke fehokotaki'anga mowhiti kaka karekau karekau karekau, reke fehokotaki'anga mowhiti pereti momo karekau karekau, flanges mowhiti pereti momo flange karekau, flanges.
4. E ai ki te paerewa o te ahumahi petrochemical, ka taea te wehewehea nga flanges kipapatahi-paiherea flanges(SO), flanges reke-weled (WN), flanges miro (PT), flanges paiherea turanga (SW), flanges karekau wetewete (LJ), me nga potae flange (kaore i tohua ki te ripanga).