The results shows that the corrosion is an ideal austenite crystal boundary corrosion for pipe line steel. The accuracy of adopted determination method is high.
结果表明，此浸蚀剂是管线钢一种理想的奥氏体晶界浸蚀剂，所采用的测定方法的精确度较高。
This paper describes a design method of PC control system for automation line of steel pipe binding in practice.
本文通过钢管捆扎自动线的工程实践，叙述了PC控制系统的设计方法。
To introduce the process of wire drawing process, chemical Cu-plating process and formulation of top grade submerged-arc welding wire for pipe line steel.
介绍管线钢用高等级埋弧焊丝拉丝工艺、化学镀铜工艺及配方。
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