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特价圆片形D8x3mm强力磁铁灯饰吸铁石钕铁硼黑板强磁8*3mm镀镍
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厂家专业生产小圆片强力磁铁6*3mm 眼镜框锁具亚克力钕铁硼磁铁
As the third generation rare earth materials, Neodymium iron boron rare earth permanent magnet is widely used in motor, automobile, wind turbine, sound systems, speakers, car horns, earphones, electroacoustic, communication, VCM, aerospace, nuclear magnet... 立即咨询

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