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;
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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