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Graphene Supercapacitor For Portable Electronic Devices

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graphene supercapacitor for portable electronic devices

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Factory Wholesale Custom Portable Winter Heated Multi-Purpose Graphene Usb Electronic Hand Warmer

Brand Name:SHEER FOND

Model Number:Electric Hand Warmer

Place of Origin:DONG GUAN

Factory Wholesale Custom Portable Winter Heated Multi-Purpose Graphene Usb Electronic Hand Warmer Product Description: This is a hand warming device heated by graphene heating elements, which provides a milder and more comfortable heating sensation without...

Dongguan Sheerfond New Materials Co., Ltd.

Verified Supplier

Guangdong

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