30.97 End of interruption of work - split/merged Dec 20, 1991
CEN
CEN/TC 229 Precast concrete products
European Norm
Product characteristics conditioning the essential requirements. Resistance are: Mechanical concrete strength, porosity concrete, cover to reinforcement and loadbearing capacity.
ABANDON
cen:proj:10924
30.97
End of interruption of work - split/merged
Dec 20, 1991