double-drum boiler双汽包锅炉;双锅筒锅炉
double-drum dryer双转筒干燥机;双转鼓干燥器
double e drum winch双滚筒绞车
double e drum mixer双滚筒搅拌机
double-drum winch双滚筒绞车;双卷筒起网机;双筒绞盘机;双卷筒绞车
double -drum winch双卷筒绞车
double-drum drier双滚筒干燥机
Double Sieve Drum双筛鼓
double-drum mill双滚筒磨式