SNCF Class BB 12000 SNCF Class BB 12000 The SNCF Class BB 12000 were electric locomotives operated by SNCF. The first examples arrived on the railway in 1953, operating on the 25 kV 50 Hz line to the coal mines of the "Houillères de Lorraine" in the north-east of France. BB 12001 arrived in Mohon on July 17, 1954. Tried first along the Valenciennes – Lumes line, specifications called for a locomotive capable of pulling 750 tonne trains along a grade of 10 ‰. The 12000 Class proved more than capable, pulling 1100 tonne then 1400 tonne trains. BB 12006 using a different system
China Railway No.2 Group the State Council. In January 2017, China Railway Group Limited backdoor listing some assets, as well as privatized China Railway Erju's subsidiary China Railway Erju Engineering Co., Ltd. (). China Railway Erju was renamed to China Railway Hi-tech Industry (CRHIC) after the transactions. The predecessor of the company was found in 1998 (China Railway No.2 Group Co., Ltd., ), which could be traced back to 1978, as the Second Bureau of Engineering of the Ministry of Railways. () The original second bureau could traced back the history to 1950, but in 1978 the bureau was split into the [new] second