usb warmer is a kind of usb cup heater , It is popular as the usb gadget in the market. Various colour selection;Flowery and individual LOGO can be designed,suppliers and distributors can choose it as promoting and advertising gifts;Considerate design,no national bunderies propagandization,wonderful promotion giftFeatures of usb warmer / usb coffee warmer / coffee warmer / usb gadget1) Can keep ...
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