AS-NZS 2451-1998 Bolts, screws and nuts with British Standard Whitworth threads (rationalized seriesAS-NZS 2451-1998 Bolts, screws and nuts with British Standard Whitworth threads (rationalized series)
部份国外标准涉及版权问题,所以全部国外标准于2013年02月,全部删除!相关页面仅提供参考消息。