The 2 stiffeners from saclay (sandblasted at Saclay) were used for ERAM-41 and 43
3 stiifener at CERN. 2 should be sandblasted again. Is the last one recently found in a good state for gluing ERAM-44 ?

the O-ring groove was measured by cern metrology. Dimensions are smaller than the ones in the step files. IRFU mechanical division will update the drawings and ask for the resuming of the production of the 6 new stiffeners