国家/地区 中国（2）
IPC部 F（2）
IPC大类 F02（2）
IPC小类 F02M（2）
IPC
发明人
公开年 2021（2）
申请年 2021（2）
专利权人

Automobile oil delivery pipe assembly for providing conveying petroleum for automobile, has oil conveying pipe comprising poly-chlorine base material layer silicon oil layer and scale anti-corrosion coating.

GUO P

Negative ion graphene oil-saving device comprises upper and lower hard plastic plates, where between the plates is orderly provided with first anion graphene layer, rare earth layer, tourmaline powder layer and second anion layer.

YAN N