国家/地区 中国（2）
IPC部 B（2）
IPC大类 B22（2）
IPC小类 C21D（2）
IPC D01F001/10（2）
发明人
公开年
申请年 2021（2） 
专利权人

High strength conversion flange comprises steel material having carbon, silicon, manganese, chromium, nickel, molybdenum, gallalium, Rhenium, zirconium, lutetium, and strontium.

MENG K

Preparation of copper based iron based composite electrical contact material includes preparing graphene fiber containing ferric oxide powder, modifying graphene fiber containing ferric oxide powder and pretreating base material.

ZHENG Y