| Class DZM-13 wagons entered service between 1936 and 1968 and are reclassified Class DZ-7 wagons that had their side doors removed to convert them to bulkhead flat wagons.Number range (as Class DZ-7) 51 012 006 to 51 373 998, 51 420 007 to 51 439 999, 51 548 380 to 51 548 771, 51 548 798 to 51 549 565, 51 549 611, 51 541 638 to 51 549 700 and 51 550 008 to 51 551 799, Length between couplers 14.752m, Length over headstocks 13.868m, Length between bogie pivot centres 10.058m, Height 2.206m, Width 2.426m, Tare (average, before modification) 19,350kg, Load 44,000kg, Floor area 34m2, Capacity 31m3. |