国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01F（3） C01B（3） B01J（2）
IPC B01F033/83（3）
发明人
公开年 2023（3）
申请年 2022（3） 
专利权人

Metal material for flame retardant steel structures, for preparing fire-proof boards, includes a metal substrate, and a fireproof coating prepared by coating a fireproof coating on the surface of the metal substrate.

LI Z, LI X

Homogenizing device for preparing graphene by mechanical stripping, has grinding assembly comprising grinding cover and grinding table body located in grinding cover, where inclined angle of inner wall of grinding cover is same.

ZHANG M, YANG J, GAO Y

Processing device for graphene oxide-based separation membrane, comprises preparation chamber equipped with drainage mechanism and extruding mechanism, and extruding mechanism runs through between preparation chamber and crushing cabin.

LI C, DING Y