国家/地区 中国（2）
IPC部 C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC F25D017/06（2）
发明人
公开年
申请年 2021（2）
专利权人

Device for preparing graphene nano material, has telescopic sleeve whose top end is connected with cooling box, where inner part of telescopic sleeves is provided with damping spring, and number of damping springs is in specific range.

GONG B, GONG R

Radiating device for medical molecular sieve oxygen generator, has cooling water whose side surface is provided with ventilation groove, where inner wall of ventilation groove is welded with guide blade extending inwards.

HE G, XIE L, LIU B