Metal zippers are divided into copper zippers and aluminum zippers according to their materials. Copper zippers are divided into 85 copper and 65 copper;
According to the type of microphone teeth, it is divided into ordinary teeth, Y-shaped teeth, corn fine teeth (double-headed), etc.
According to the type of oxidation on the surface of the microphone, it is divided into gold, bright gold, bronze, black copper, bright silver, ancient silver, sub-silver, etc.
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