己内酰胺工业级高纯度99%尼龙合成纤维涂料塑料现货速发

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Shandong Fushun New Material Technology Co., Ltd

Address:Jinan Chemical New Materials Trading Market, Tianqiao District, Jinan City, Shandong Province
Tel:18668970119

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18668970119

己内酰胺 工业级高纯度99%尼龙合成纤维涂料塑料 现货速发