Insulating brick density: 0.6-1.25g/cm3 temperature: 1260/1430/1540/1650/1760 degree Al2O3: 37-77% size: 230x114x65/75mm ZIBO JUNXU TECHNOLOGY CO,LTD is the professional manufacturer and exporter of refracotry and insulation material . Our products mainly include insulating brick, refractory brick, refractory castable, ceramic fiber products. For insulating brick, the production capacity is ...