BS 919-1-2007 Screw gauge limits and tolerances. Specification for gauges for screw threads of unifiBS 919-1-2007 Screw gauge limits and tolerances. Specification for gauges for screw threads of unified form
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。