If I have a direction, that is far away. How to Make Steel, Rangers do not rely on strong.
如果我有方向，那就是远方。钢铁是怎样炼成的，流浪不靠坚强。
The paper introduces the basic feature, the welding property, the welding process and the welding quality inspection of P91 steel, and it deals with how to make the welding quality control.
本文介绍P 91管材的基本特征、焊接性能、焊接工艺及焊接质量检验，并阐述如何做好焊接质量控制。
The most important question of endless welding is how to make two steel strip connected together in high speed.
无头轧制中的关键问题是钢坯的连接技术问题，即要在非常短的时间内将高速运动的钢坯连接起来。
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