The first company to have putting in circulation these blanket cars, was the company Deutsche Bundesbahn (DB) with approximately 2600 models.
Finally the wagons of type Gmms 44, Gmm (eh) s 60, Gmms 40 and 216 have have been under 100,000 copy for all the companies of channels free.
The manufacturer of trains miniatures BRAWA you offers different wagons of goods from of several epoches under scale HO: 1/87.