double groove weld
...lar weld metal不同的焊接金属; 不同金属的焊接 distance between the toes of a weld焊缝宽度 double groove weld双面坡口焊缝 ..
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双面V形坡口焊缝 double-Vee groove weld
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节点中的焊接宜采用完全焊透的坡口对接焊缝连接，当采用双面角焊缝连接时，可按等强设计。
And the welding connecting of them are advised to use slope butt weld that are fully welded, but when the double-sided fillet weld is used, they should be design on equal strength.
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