The seam of the weld with many features This time the action is intended to practice skills in a different way (for bump and Phil islet) Furthermore, in order to study the link results in a different way, and compare the problem by making connections and then apply to welding rods to study the deep penetration of Korea.-From the comparison of the experimental results showed that the t-joints, welding is a welding joints Phil islet is difficult for c.i.s. chueammakkwa bump and quite many such errors. Welds are not absorbed deep into the piece. The salaek difficult to knock out occurred. Heat in large pieces, which requires specialized skills.
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