Al2O3-C-SiC系炉底
Al2O3-C-SiC furnace bottom
电炉底板
electric furnace backboard
辊底炉
roller hearth furnace
tunnel furnace
roller - hearth furnace
rooler-hearth furnace
roller hearth type furnace
roller hearth plate furnace
roller hearth reheating furnace
辊底炉生产线
roller hearth furnace production line
锅炉底部结渣
clinkering at boiler bottom