BBR launches the BBR VT CONA CMM Unbonded Post-tensioning System (European Technical Approval – ETA 06/0165). The CONA CMM complies with the latest international requirements for post-tensioning and allows for the usage of seven-wire strands with a cross-section of 140 and 150 square millimeters and pioneers the usage of the advanced compacted strands with a cross-section of 165 square millimeters.