国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC B01D061/00（3）
发明人
公开年 2022（2）
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

Device for separating and oxidizing graphene by ceramic composite film, has separating cylinder formed with separating cavity, where end of feeding pipe is limited between pressing piston and limiting piston.

WANG Y, SHI C, SHEN Y

Graphene purifying device has purifying box whose bottom is slidingly connected with baffle plate and is fixedly installed with top portion of purifying pipe.

LI J, ZHAO Q, ZHAO B