It is a quite common tension jack with through gangent style using for pulling the anchor group as well as other type anchorages  

YCWA type jack series is a quite common tension jack with through gangent style using for pulling the anchor group as well as other type anchorages. Through changing the different accessories, it can also be used for upset head anchorage and casting anchorage. So it has been widely used in pre-tension working tasks.

YCWA TYPE JACK