Weld the main gusset as shown in the drawing above.

焊接主要扣板如上所示在提请大会。

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And the hardness of the weld account for 70 percent of the main body material.

同时发现焊接区的硬度约为母材硬度的70%。

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And the hardness of the weld account for 70 percent of the main body material.

同时发现焊接区的硬度约为母材硬度的70%。

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