国家/地区 中国（3）
IPC部 D（3）
IPC大类 F16（3）
IPC小类 D01D（2） D06M（2）
IPC D06M015/256（2）
发明人
公开年 2022（3）
申请年 2021（2） 
专利权人

Composite thermal insulation yarn useful in petroleum field, comprises graphene fibers for heating and graphene silica gel composite layer wrapped in graphene fibers, where graphene silica gel composite layer is composed of precursor solutions including e.g. graphene powder and liquid silica gel.

SHEN Y

Polytetrafluoroethylene (PTFE) fabric pad and dry film combined friction pair useful in self-lubricating bearing joint comprises polytetrafluoroethylene fabric pad and dry film are rotatably matched to form friction pair.

YANG B, LI Y, ZHENG Q, ZHANG L, ZHUANG C

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

MENG K