Silica Fire Brick 20 Years Manufacturer,Timely Delivery 100,000Ton/Year High CCS,1680Celsius ... of silica bricks are the main refractory material for coke oven,Open-hearth Furnace,Soaking Pit,Glass Furnace,Blast Furnace,Shaft ... manufacturer from China,we have been in this area over 20 years in domestic markets.Company relys on local abundant resources ...