... wedge,base plate,spiral,duct,coupler. Material: alloy steel,cast iron,strip steel. Features: 1.LQM anchorage system can be used ... 7mm, 5mm, strength 1470-1960Mpa PC steel wires.2. LQM anchorages system is complete in varieties and specifications. Wedge anchorage can ... Anchor Bearing Plate ,and the restraing plate must in the same direction with the hole of tool anchorage,and the strands cannot be twined ...