1. Ngokutsho kophuhliso olutsha lwemveliso yeerubha ze-silicone, ngakumbi, ukusebenza, ukuphucula umgangatho wemveliso kunye nezinye iingenelo (kwi-rubber ye-silicone, i-hardware, iiplastiki, iimeko zeselfowuni, njl.).
2.Amaqela amathathu eenkqubo zokucoca ezithandathu, zinokudibaniswa ngokukhululekileyo, zisebenza kwiimfuno ezahlukeneyo zabathengi.