July 01, 2011

Study of welding - ウェルディングの研究

We, welders always try to have better welding in daily work. But it is better to study about welding, sometimes. This is the example for us. After each welder reads this document, it would be better to discuss how we sould weld, how we improve our welding, and so on. Both practice and study makes us improve.


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