overhead conveyer

... 推杆悬链double-chain conveyer 悬挂运输链overhead conveyer 油水分离器oil-water separator ...

 double-chain conveyer

... chain-and-scraper conveyer 链式铲运机 double-chain conveyer 推杆悬链 ; 悬挂运输链 drag-chain conveyer 链拉输送机 ...