| 标准编号 | BS AU 138a:1980 (Superseded) |
| 标准名称 | Specification for dimensions of 'contact' type couplings for air pressure braking systems on trailers and semi-trailers and their towing vehicles, and the arrangement of these couplings on articulated and drawbar combinations |
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| 发布日期 | 1980-11-28 |
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| 前言 | |
| 无 |
