Technician A is wrong and Technician B words that drum brake shoes need to be cleaned and reused when lining is stained with gear oil or grease is correct.
In a situation when they are said to be soaked in anything that is bad then one can be said to not reuse them but in other cases, it can be reused.
Note that Technician A is wrong and Technician B words that drum brake shoes need to be cleaned and reused when lining is stained with gear oil or grease is correct.
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