This part defines the terms of railway vehicle coupler buffer and windshield. This part applies to standards, technical documents and technical publications related to railway vehicles.
GB/T 4549.4-2004 history
2004GB/T 4549.4-2004 Railway vehicle vocabulary Part 4:Coupler,draft gear and vestibule diaphragm
1984GB/T 4549.4-1984 Rolling stock terms--Coupler,draft gear and vestibule diaphragm