Kaifeng Zhongqiao Prestressed Equipments Co.Ltd can supply high quality slab anchorage.It is suitable for Φ12.7 and Φ15.2 strands.It gets rid of disadvantages of over concentrated pre-stress and large sizes in two directions in group anchor .The stress distribution is reasonable and the thickness of the components can be furture reduced .The anchorages can work with YBZ2*1.5-63 electric oil pump and QYC 270 jack.