国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC
发明人 ZHANG Z（2）
公开年
申请年
专利权人

Graphene lubricating oil grading filter device includes base plate, where base plate is provided with support mechanism, support mechanism is provided with coarse filter mechanism for performing first coarse sieve of graphene and fine filtering mechanism for performing second fine sieve of graphene.

ZHANG Z, WANG H

Solid waste oil separating and filtering device, comprises oil outlet port, supporting net, cylinder with oil opening, filter screen, graphene filtration membrane, and negative pressure device with negative pressure port.

ZHANG Z, HAN L