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The main material is paper, it is a common one which price is cheap and use widely, we produce the size from 20mm to 200mm which can be customized. For the surface treatment, we have smooth without coating, smooth with coating, dotted without coating, dotted and coating.
http://www.chinaspeakerparts.com/
Paper Dust cap
Shengzhou Jinshenglong Import & Export Co.,Ltd.
audio, speaker, speaker fittings Manufacturers
