介绍了目前中国、欧美和俄罗斯常用油气输送钢管标准的使用情况及其发展趋势。
This article introduces the using condition and developing trend of common standards of steel pipe used for petroleum and nature gas transmission in China, Euramerica and Russia.
将结束中国建筑用不锈钢管标准引用不规范的历史;
Will end China building stainless steel tube standard reference not norm of history;
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