国家/地区 中国（2）
IPC部 C（2）
IPC大类 C08（2）
IPC小类 C08K（2）
IPC C08K003/04（2）
发明人
公开年 2023（2）
申请年 2022（2）
专利权人

Liquid ring type vacuum pump comprises e.g. pump body, pump cover fixed at two ends of the pump body respectively, disc fixed between two pump covers and pump body and impeller fixed on rotating shaft between two discs.

ZHAO X, WANG Q, LIU Y, YUE H, YU S

Rubber composition used in air cavity rubber pad of air compressor for fish tank, comprises rubber matrix and reinforcing agent, where rubber matrix includes natural rubber, butadiene rubber and trans polyisoprene, reinforcing agent includes modified aramid pulp, graphene and carbon black.

WEI Y, WANG J