J-TREC

Railway rolling stock and their parts and fittings; bodies of railway rolling stock; seats of railway rolling stock; railway couplings; undercarriages for railway cars; bogies for railway rolling stock; doors of railway rolling stock; buffers for railway rolling stock

Construction of rail tracks; maintenance of rail tracks; consultancy in relation to construction of rail tracks; repair and maintenance of automobiles; remodeling of railway rolling stock; repair and maintenance of railway rolling stock; cleaning of railway rolling stock

Designing of railway rolling stock; designing of safety devices for railway signals; designing of railroad tracks and road beds, track beds, railroad ties and rails; designing of machines, apparatus, instruments along with their component parts and systems composed of such machines, apparatus and instruments, all used for railroads; testing and research of railway rolling stock and their parts and fittings; testing and research of railroad tracks and road beds, track beds, railroad ties and rails; testing and research of machines and instruments used for railroads