国家/地区 中国（2）
IPC部 B（2）
IPC大类 B22（2）
IPC小类 B22F（2）
IPC B22F005/00（2）
发明人
公开年 2021（2）
申请年
专利权人

High-speed magnetic levitation fan back cover heat dissipation shell comprises a heat dissipation shell body, a first heat dissipation component arranged on the side of the heat dissipation shell body and a second heat dissipating component.

ZHOU F, XU Y

Aluminum alloy door and window used in chemical plant and smelter, comprises main material, sound insulation layer, wear-resistant layer, anti-oxidation layer and self-cleaning layer having preset thickness.

LIU N