密闭鼓风炉熔炼
smelting by hermetic blast furnace
imperial smelting furnace
平衡送风熔铁炉
equilibrium-blast furance
鼓风炉铁泥
blast furnace iron sludge
高炉鼓风机
BF fan
BF air-blower
blast furnace blower
BF blower
blast furnace blowing engine
blast-furnace blower
blast furnace electric air-blower
Air blower of blast furnace
blower for blast furnace
锅炉鼓风机
boiler blower
boiler forced draft blower