Application and features 1.It is widely used for the construction of bridge and buildings, railway and subway, water conservancy and hydropower engineering matched with prestressed anchorage and strands. 2.It is suitable for stressing mono strands or multi strands, the specification is Φ15.24 andΦ12.7. 3.In some certain circumstance it can be used in the working of pushing, jacking and transforming and so on. 4.Easy to use with reasonable price. 5.Jack is used for prestressing workshop.