Igrayiti yentsimbi engwevu eyenziwe ngentsimbi / izigqubuthelo eziqinileyo kunye nezakhelo ziya kwenziwa njengoko ziveliswa nguMingda.Intsimbi engwevu esetyenziselwa ukwenziwa kwegrayiti okanye izigqubuthelo eziqinileyo kunye nezakhelo ziya kuhambelana ne-ASTM A48-83 UHLELO 35. Zonke iicasta ziya kuba kumgangatho ofanayo, zingabi namingxuma yokuvuthela, iziphene zokushwabana, ukudumba, iintanda okanye ezinye iziphene.Iyaphosaaziyi kuba namaphiko, i-burrs kunye ne-slag.

Ithanki yentsimbi etyhidiweyo okanye izigqubuthelo eziqinileyo (iifreyimu ezifakwe ngentsimbi engwevu ngaphandle kokuba intsimbi etyhidiweyo etyhidiweyo) iya kubonelelwa nguMingda.I-Ductile cast iron esetyenziselwa ukwenziwa kwegrayiti yomsele okanye izigqubuthelo eziqinileyo kunye nezakhelo ziya kuhambelana neASTM A536-80 grade 65-45-12.Zonke iisanti ziya kuba kumgangatho ofanayo, zingabi namingxuma yokuvuthela, iziphene zokushwabana, ukudumba, iintanda, okanye ezinye iziphene.Iyaphosaaziyi kuba namaphiko, i-burrs kunye ne-slag.