国家/地区 中国（2）
IPC部
IPC大类
IPC小类
IPC
发明人 CHEN L（2）
公开年
申请年 2021（2）
专利权人 CHEN L（2）

Hula multifunction, has propping block connected with inner side part of hula hoop main body, and vibrating plate driven to vibrate, waist part vibrated and matched with super-strong heat conduction force of graphene layer.

CHEN L

Single-cavity efficient grinding device for preparing graphene, has rolling disk whose middle portion is provided with limiting sleeve, and discharge pipe whose outer wall is provided with driving combination that is formed with rolling disc.

CHEN L