国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC B01D050/00（3）
发明人
公开年 2022（3）
申请年 2021（3） 
专利权人

Flue gas purifying pipeline for use in steel-making production, has mounting block fixed at top end of air suction furnace that is connected with bottom end of first level furnace by bolt, where first level furnace is connected to bottom end of second level furnace.

GU H, LIU W, XU H, YAO G, YANG H

Spot welding device graphene battery production, has fixing frame whose inner bottom surface is provided with fixture box with top opening, where fixture box is slidingly connected with supporting plate.

HU W

High-efficiency indoor formaldehyde pollution purifying device, has dust removing filter screen provided with fan, where bottom end of fan is provided with formaldehyde removing filter core, and bottom end part of filter core is provided.

SONG Q