BS 4515-1-2009 Specification for Welding of Steel Pipelines on Land and Offshore - Part 1 Carbon andBS 4515-1-2009 Specification for Welding of Steel Pipelines on Land and Offshore - Part 1 Carbon and Carbon Manganese Steel Pipelines
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。