In 1979 , Robert Zildjian took over Tosco and transformed it in a Sabian subsidiary .
The grandson of Rosati , Buiani , co-founded with Giovanni Spadacini the Tosco company in 1974 .
In 1979 , Robert Zildjian took over Tosco and transformed Tosco in a Sabian subsidiary .
The grandson of Rosati , Buiani , co-founded with Giovanni Spadacini the Tosco company in 1974 .