BS 5911-3-1982 Precast concrete pipes and fittings for drainage and sewerage part 3 Specification foBS 5911-3-1982 Precast concrete pipes and fittings for drainage and sewerage part 3 Specification for pipes and fittings with ogee joints
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。