Thunder Models US Army Tractor During World War II Case produced more than 1,3 million howitzer shells, 200 sets of bomber aircraft wings, and 20000 specialized war tractors and engines. From 1941 to 1945 the factory built over 15000 special military tractors in roughly 40 variants, and over 4000 tractor engines for the U.S. Army and the Allies - 70 plastic parts (sprues A, B,) - 4 slide molded silicone tyres - PE detail sheet, decals with 2 marking options Deluxe Materials Plastic Magic Cement 40ml (AD83) Plastic Magic Cement is a thin, liquid plastic cement with a 10-15 sec adjustment time & non-clog action. It is non-toxic, non-flammable, has minimal odour and almost zero emissions when compared to competitors.