Ukusetshenziswa kwe-ejenti ye-carburizing
Njengomkhiqizo odumile emhlabeni wonke wesulphur ephansi ene-calcined, i-ejenti ye-graphitized carburizing kanye ne-ejenti yokunciphisa imikhiqizo yamakhemikhali, silwela ukudala inani lezigayo zensimbi ezinkulu ezingaphezu kuka-3000, izisekelo nezitshalo zamakhemikhali emazweni angama-65 emhlabeni jikelele.Okokuqala, izigayo zensimbi, endaweni yokuncibilikisa...