0086-379-13663795948
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Nano WS2 powder (Ultrafine WS2 Tungsten disulfide powder) 10nm 60nm, US $ 120 - 200 / Kilogram, Henan, China, DYNANO, DY-WN-WS2-001.Source from Zhengzhou Dongyao Nano Materials Co., Ltd. on Waimaotong.com.