国家/地区 中国（2）
IPC部 F（2）
IPC大类 F25（2）
IPC小类 F25D（2）
IPC F25D017/06（2）
发明人
公开年
申请年
专利权人

Graphene heating device for processing fruit and vegetable drying food, has heat partition cooling piece slidably connected on supporting plates and for partitioning space between first supporting plate and second supporting plate.

KANG G

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