ir_71 发表于 2014-6-29 17:25:55

ISO 21809-5:2010

ISO 21809-5:2010
Petroleum and natural Gas industries -  External Coatings for Buried or  submerged Pipelines used in Pipeline  Transportation systems -
Part 5: External concrete coatings



41064 [/ attach]

41064 [/ attach]


admin 发表于 2014-6-30 09:59:40

谢谢您的分享，金币已奖励

奢望天 发表于 2014-9-2 10:03:15

能不能发我一份啊，学习一下子

countryboy66 发表于 2014-9-8 09:49:23

下载了混凝土配重海管标准.谢谢!
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