实践证明，通过改变焊接工艺，确保了自动焊焊接质量，尤其对焊前进行喷漆处理的薄板，更是一种行之有效的方法。
It testifies that the changed welding technique can ensure the quality of auto welding quite well, especially for the sheet pre painted.
实践证明，通过改变焊接工艺，确保了自动焊焊接质量，尤其对焊前进行喷漆处理的薄板，更是一种行之有效的方法。
It testifies that the changed welding technique can ensure the quality of auto welding quite well, especially for the sheet pre painted.
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