国家/地区 中国（2）
IPC部 B（2）
IPC大类 B29（2）
IPC小类 B29B（2）
IPC
发明人 LI H（2）
公开年 2022（2）
申请年 2022（2）
专利权人

High temperature resistant packer sealing rubber cylinder is useful in oil field, comprises e.g. 100H type tetrapropylene fluorine rubber, 100S type tetrapropylene fluoride rubber, N990 carbon black, N774 carbon black, calcium stearate, and triallylisocyanurate.

YANG Z, LI Y, LUO B, FU W, LV Z, CHEN K, LONG X, CAO X, LI H, REN J

Graphene sealing device of Banbury mixer, has groove that is matched with arc-shaped bump, and material of upper sealing ring and lower sealing ring is stainless steel.

ZHANG B, ZHU C, ZHANG X, XIAO Y, SUI F, LI H, CHENG X