most successful type 1 locomotive is the British Rail Class 20, which still has some members in service. In this case, the cab is at one end with high engine covers. Germany The DB Class V 90 and the Voith Gravita are heavy shunters suited for road switching tasks. Belgium Belgian state railways NMBS/SNCB operate 170 German built engines in their class 77, both for shunting and for mainline haulage. Poland PKP class SM42 is a Polish 74-ton diesel locomotive used for shunting and light mainline haulage (version SP42 and SU42). 1822 units were built, used mostly by Polish carriers but some were exported abroad. Czech The ChME3 is six axle diesel locomotive with electric transmission built by ČKD. The class were used primarily for yard and road switching services. Units have been operated by Russia, Belarus, Ukraine (as class ЧМЭ3, transliteration ChME3) and other ex-Soviet bloc countries, in Czechoslovakia (as class T669, later as ŽSR 770 and ČD 770 in Slovakia and the Czech Republic), on industrial railways in Poland (S200), in Albania (HSH T669.1), Iraq (DES 3101), Syria (LDE 1500) and in India (DEC 120). China The China Railway DF5 is a diesel-electric locomotive used by China Railway in the People's Republic of China. It has been in production since 1976 and is still produced as of 2006 by several local companies. It is the most common road switcher in China and is used for yard and road switching services. A small number are also in service with the Korean State Railway in North Korea. Japan The and JNR Class DE10 are the most common road switcher diesel-hydraulic locomotives in Japan, ordered by Japanese National Railways, used for yard and road switching services. Some private terminal railways also ordered new road switchers or purchased a small number of secondhand road switchers. References Locomotives