国家/地区 中国（5）
IPC部 B（5）
IPC大类 C09（5）
IPC小类 C09D（5）
IPC C09D007/63（5）
发明人
公开年 2021（4）
申请年 2020（2） 
专利权人

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

Spoke alloy disc material used in spoke disc, comprises zinc, magnesium, copper, scandium, zirconium, iron, nickel, silicon, phosphorus diatomite, modified diatomite, and sulfur diatomaceous earth.

ZHAO X

High-speed magnetic levitation fan back cover heat dissipation shell comprises a heat dissipation shell body, a first heat dissipation component arranged on the side of the heat dissipation shell body and a second heat dissipating component.

ZHOU F, XU Y

Aluminum alloy door and window used in chemical plant and smelter, comprises main material, sound insulation layer, wear-resistant layer, anti-oxidation layer and self-cleaning layer having preset thickness.

LIU N

Anti-rust and anti-corrosion low-nickel stainless steel material comprises chromium, boron, manganese, molybdenum, nickel, vanadium, phosphorus, silicon, and nitrogen.

PANG X, ZHAO Y, PANG M, HU Z, ZHAN Y, YANG J