中文谷fillet welding造句怎麼寫
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Automatic submerged arc welding is the method for medium/ thick plate welding, but it mainly to be used in flat welding and fillet welding.
Used for down hand welding and flat fillet welding on general low-carbon steel structures…
Effects of welding conditions on weld geometry parameters for triple-electrode high-speed CO_2 fillet welding on double sides
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