dual way check valve

双向止回阀（双通单向阀）  detail>>

dual flow filter

双向过滤器  detail>>

dual flow path

双流程 双流路  detail>>

dual flow tray

双流塔盘  detail>>

dual flow turbojet engine

内外涵涡轮喷气发动机  detail>>

dual full-flow filter

双组式滴流过滤器 双组式满流过滤器  detail>>

dual-flow engine

双路式发动机  detail>>

dual-flow oil burner

双流式油喷燃器  detail>>

dual-flow oil filter

双流油过滤器  detail>>

dual-flow tray

穿流塔板 双流式塔盘  detail>>

dual-flow turbine

双流式涡轮机  detail>>

dual-flow turbojet engine

双路式涡轮喷气发动机  detail>>

dual-flow type tower

淋降板塔  detail>>