Kugwiritsa ntchito carburizing agent
Monga mtundu wodziwika kwambiri padziko lonse lapansi wa sulfure wotsika calcined, graphitized carburizing agent ndi kuchepetsa wopangira mankhwala, timayesetsa kupanga mtengo wopitilira 3000 zitsulo zazikulu, zoyambira ndi zomera zamankhwala m'maiko 65 padziko lonse lapansi.Choyamba, mphero zachitsulo, muzitsulo zosungunulira ...