9-12高压离心通风机是化铁炉和纸箱机械专用的高压离心风机。输送气体应无腐蚀性不自燃、不含粘性物质的气体，输送介质温度一般不超过80°C，介质中所含的尘土及硬质颗粒≤150mg/m³。

9-12(A) type is the professional fans designed for Cupolafurnace and carton machine. The air transferred shall notcontain any corrosive, not spontaneous combustion andadhesive material, dust and grain and the concentrationshall not exceed 150mg/m³, with the temperature no higherthan 80°C.