国家/地区 中国（2）
IPC部 C（2）
IPC大类 C21（2） C22（2）
IPC小类 C21D（2）
IPC C21D001/18（2）
发明人 ZHOU H（2）
公开年
申请年
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

High temperature corrosion resistant alloy steel comprises lead, palladium, cobalt, silicon, tin, graphene, sodium silicate, carbon fiber, bismuth, iron, zirconium, tungsten carbide, cerium and cadmium.

ZHOU H