00300nam a2200109Ia 4500008004100000082001100041082000800052245010500060245000800165260000800173300000900181231017s9999    xx            000 0 und d  a625.18  bBSI 0aConcrete- Part 3: Specification for the procedures to be used in producing and transporting concrete 0cBSI  bBSI  c30cm