Ngoku ke
isiseko sokungundaishishini lemveliso livuthiwe. Ukongeza ekuthengeni iziseko zokungunda ezilungiselelweyo ngokweemfuno zomngundo ngamnye, abavelisi bomngundo banokukhetha iimveliso ezisemgangathweni. Umgangatho
iziseko zokungundazifumaneka kwiindlela ezahlukeneyo, kunye namaxesha amafutshane okuhanjiswa kunye nangaphandle kwebhokisi, ukubonelela ababumbi ngokuguquguquka okukhulu. Ke ngoko, ukuthandwa kweziseko zokungunda eziqhelekileyo kuyanda.
Ulwakhiwo lweplasitiki eqhelekileyo lunala macandelo alandelayo:
1. I-mold ephezulu (i-mold yangaphambili) iqulunqwe njengenxalenye yokubumba ye-mold yangaphakathi okanye i-molding part of the original body.
2. Inxalenye yoMbaleki (kubandakanywa nombhobho oshushu, umgijimi oshushu (inxalenye ye-pneumatic), umgijimi oqhelekileyo).
3. Inxalenye yokupholisa (umngxuma wamanzi).
4. I-mold ephantsi (i-mold yangemva) iqulunqwe njengenxalenye yokubumba ye-mold yangaphakathi okanye i-molding part of the original body.
5. Push out isixhobo (igqityiwe ipleyiti yokutyhala, i-thimble, inaliti yesilinda, i-inclined top, njl.).
6. Indawo yokupholisa (umngxuma wamanzi)
7. Ukulungisa isixhobo (intloko yenkxaso, intsimbi yesikwele kunye nomphetho webhodi yenaliti, njl.