What material is the hearth of the అధిక ఉష్ణోగ్రత బాక్స్-రకం నిరోధక కొలిమి?

The furnace material of the అధిక-ఉష్ణోగ్రత బాక్స్-రకం నిరోధక కొలిమి adopts the inorganic fiber produced by vacuum forming technology as the furnace material. The special furnace design has the characteristics of fast heating speed, low thermal conductivity, low empty furnace loss and energy saving.