国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B21（2）
IPC小类 C09D（2）
IPC C09D005/10（2）
发明人
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

Environmentally-friendly corrosion-resistant single-layer polyethylene terephthalate color coated steel sheet contains zinc powder, nano-silica and nano-ceria, sericite powder, and graphene-water-soluble silicone-modified acrylic resin.

ZHAO H