double horse-shoe flame tank furnace双马蹄焰池窑
double-shoe brake[车辆] 双瓦式制动器
double-shoe brakes块式制动器
DC-electromagnet double-shoe brakes直流电磁铁块式制动器
Connected dimensions of double-shoe brakes块式制动器
The electro-hydraulic double-shoe brakes电力液压块式制动器