1. Chii chinonzi ceramic jecha? jecha receramic rinonyanya kugadzirwa nemaminerari ane Al2O3 uye SiO2 uye akawedzerwa nemamwe mamineral zvinhu. A spherical foundry jecha rakagadzirwa nehupfu, pelletizing, sintering uye grading maitiro. Yayo huru yekristaro chimiro ndeye Mullite uye Corundum, ine yakatenderedzwa zviyo chimiro, h ...
Verenga zvimwe