国家/地区 中国（3）
IPC部 B（3）
IPC大类 C22（3）
IPC小类 C22C（3） C21D（2） D01F（2）
IPC C22C049/14（2） C22C101/10（2） D01F001/10（2）
发明人
公开年 2022（2）
申请年 2021（3）
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

Mixed fiber preform reinforced composite material useful in three-dimensional mixed-woven polyimide reinforced polyformaldehyde composite material, has e.g. fiber perform, namely three-dimensional fabric woven by two to five fibers.

CHEN Z, XIAO Q, MIAO Y

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