Dab tsi yog cov ntaub ntawv ntawm kub kub tub rauv cov raj?

Cov ntaub ntawv ntawm lub qhov cub kub kub yog: 314 cua sov-resistant steel, quartz iav, corundum ceramics, high-purity alumina ceramic raj thiab lwm yam ntaub ntawv. Feem ntau hais lus, 800-1200 degree raj rauv siv 314 stainless hlau raj lossis quartz iav raj, thiab 1400 degree raj rauv siv 99 corundum ceramic raj.