国家/地区 中国（2）
IPC部 B（2）
IPC大类 F25（2）
IPC小类 F25D（2）
IPC
发明人
公开年
申请年
专利权人

Cooling device for producing graphene nano carbon black, has round rod whose bottom end that is located at bottom of hollow column is fixedly connected with rotating disc.

LI X, WEI L, ZHANG W, LI C, QIN L

Quick freezing and defrosting tray in cooling and thawing foods comprises a heat pipe for heat conduction installed in the outer casing filled with a coolant filled and layer of graphene nanocomposite provided at the top of outer casing.

TAO X, WAN X