... :48~65%, Common and irregular shape ISO9001:2000Certificate High Alumina Bricks for Coke Oven/ Refractory For Coke Oven Zibo ... supply many kinds of refractory products, such as high alumina bricks,fireclay bricks,low porosity fireclay bricks, insulating bricks ... thermal equipments. 1. Main Characters: Refractoriness for the high alumina bricks for coke oven is 1750-1790C, refractoriness under load ...