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A The carbon brush fails. You need to buy a new one to replace it.
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A The carbon brush fails. You need to buy a new one to replace it.
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A The machine needs lubricating grease.
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A 4P, 6P, 8P, Cat5e and Cat6e.
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A Cat5e crystal head
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A 1m
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A Two AAA batteries.
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A Please refer to the last set of data.