IHikelok ineemveliso ezahlukeneyo, kuquka iivalvu zezixhobo kunye nezinto zokufakelwa, iimveliso zoxinzelelo oluphezulu kakhulu, iimveliso zobumsulwa obuphezulu kakhulu, iivalvu zenkqubo, iimveliso zokucoca, inkqubo yokulinganisa, inkqubo yokufakela kwangaphambili, iyunithi yoxinzelelo kunye nezixhobo zezixhobo.
Iimveliso zeHikelok ezikumgangatho ophezulu kakhulu zigubungela izixhobo ezincinci zokuwelda, izixhobo zokuwelda ezinde, izixhobo zokuwelda ezizenzekelayo, izixhobo zokutywina ubuso nge-gasket yesinyithi (izixhobo ze-VCR), iityhubhu, iivalvu ezitywiniweyo, iivalvu ze-diaphragm, iivalvu zokunciphisa uxinzelelo, izihluzi, iivalvu zokujonga.
