国家/地区 中国（2）
IPC部 B（2）
IPC大类 B32（2）
IPC小类 B32B（2）
IPC B32B005/02（2）
发明人
公开年 2021（2）
申请年
专利权人

Mixed woven packing set comprises polytetrafluoroethylene fiber, graphene layer, wear-resistant material and packing main body, where inner side of packing main body is covered with tetrafluoroethylene fiber and inner side of tetrafluoroethylene fiber is covered with titanium material.

ZHANG S, ZHANG M

Multilayer structure e.g. pipe for underwater device, comprises composite reinforcing layer comprising thermoplastic polymer having preset glass transition temperature, welded to outermost sealing layer, and excludes hydrogen from structure.

HOCHSTETTER G