pre-stressing anchorage 1.Type:KM series anchorage&wedge 2.Pc strand Size:12.7,12.9,15.2,15.7mm.. 3.Apply:Bridge, Highway. Prestressing Anchorage:1. type:KM series anchorage and wedges2. Working wedge and tooling wedge with 2 pieces or 3pieces 3. for prestressing works4. Size for pc strand: M13 applies to 12.7mm, 12.5mm & 12.9mm pc strand M15 applies to 15.2 or 15.24mm, 15.7mm M18 applies to 17. ...