Replace piston rod and add flow passage on piston rod.

更换活塞杆，在活塞杆上增设流道。

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The utility model provides a pneumatic conveying device, which includes a cylinder body, a piston rod, a piston seal, air storage Chambers on two sides, a reverser, and each inside passage.

本实用新型提供一种气动输送装置，包括缸体、活塞杆，活塞封，两侧的储气室，换向器，各内部通路。

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Canon Simon Killwick (who chairs the synod's Catholic group) and Prebendary Rod Thomas (of the evangelical group Reform) pledged jointly to help "ensure the speedy and safe passage of fresh legislation".

BBC: Women bishops: Backers look to new general synod election