ISO 228-1-2000 Pipe threads where pressure-tight joints are not made on the threads - Part 1 DimensiISO 228-1-2000 Pipe threads where pressure-tight joints are not made on the threads - Part 1 Dimensions, tolerances and designation
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。