杭州九朋新材料-环保新能源-超细粉体和特种防腐涂料
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杭州九朋新材料-环保新能源-超细粉体和特种防腐涂料
Boron carbide and boron nitride series
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Nano boron carbide powder CY-B4C1
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Nanoscale hexagonal boron nitride 500nm boron nitride CY-HBN
型号:CY-HBN
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