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 2021（2）
申请年 2021（2）
专利权人

Corrosion-resistant lining of rotor pump has inner lining provided with several through-holes and staggered circular structures in which staggered portions are communicated with inner side of circular structures, outer lining, and mounting bracket.

ZHANG C, YANG Z, WEI C

Combined pressure-resistant double-wall corrugated pipe has corrugated pipe provided with corrugated grooves, and exhaust pipe passing arc-shaped limiting groove and installed on annular airbag, which is in contact with corrugated groove.

LIU L, JIANG H, ZHANG Z, JIANG J, ZHANG Y