How to understand the evaluation rules for the base material
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A welding process that has been evaluated as satisfactory for welding between two types (groups) of base materials is also applicable to welding each of these two types (groups) of base materials together. How should this sentence be understood? Should it be interpreted on its own, or in conjunction with the abcd mentioned above?
Understanding this sentence requires reference to the evaluation rules for base metals in the two categories mentioned above. According to this rule, a welding process that has passed the evaluation can be used to weld two different base materials together. In other words, the same welding process can be applied to weld two different base materials together, and both of these materials have passed the required evaluation tests. Therefore, under compliant conditions, this welding process can be used for welding different base materials to ensure welding quality and reliability. .