国家/地区 中国（2）
IPC部 C（2）
IPC大类 C21（2） C22（2） C23（2）
IPC小类 C21D（2）
IPC C23C026/00（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

Preparing rGO/silicon dioxide coating on aluminum-magnesium-silicon alloy plate surface, comprises selecting polar plate, using computer engraving technology to engrave single-channel snake-shaped flow field, and removing oil and impurity.

SHAO C, HUANG J, YUAN B, LIU J, ZHANG L

Manufacturing high strength alloy steel bolt comprises taking steel for bolt, performing extrusion, hot upsetting, heat treatment and thread machining to obtain bolt blank, and performing galvanizing and zinc-aluminum coating into bolt blank.

ZHOU H