Ukunyathela kuyindlela esebenzayo yokuvelisa, kusetyenziswa iimolds ezidibeneyo, ngokukodwa i-molds ye-progressive molds, ekwazi ukwenza imisebenzi emininzi yesitampu kumshicileli omnye. Ukusebenza kwemveliso ephezulu, iimeko ezilungileyo zokusebenza, iindleko eziphantsi zokuvelisa, kwaye ngokubanzi kunokuvelisa amakhulu amaqhekeza ngomzuzu.
Inxalenye yentsimbi yesitampu/ Isitampu sentsimbi/ isitampu sealuminiyam/ Izahlulo zesitampu sentsimbi