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The invention discloses a controllable visible trachea cannula device. The controllable visible trachea cannula device comprises a cannula and a cuff, wherein the cuff is arranged on the tail end of(More)
The invention discloses a separation and purification device which comprises a rack used for mounting carriers, a raw material tank, a separation tank, a vibrating screen, a circulating pipeline, a(More)
The utility model discloses a portable hydraulic pipe bending device. The device comprises a hydraulic box, a hydraulic button, a main thrust shaft, a deformation steel ring, a connecting area, a(More)
The invention relates to an unmanned airplane suitable for severe weather. The unmanned airplane comprises an unmanned airplane body and a control panel, wherein the unmanned airplane body comprises(More)