国家/地区 中国（3）
IPC部 C（3） F（3） B（2）
IPC大类 C09（3）
IPC小类 C09D（3）
IPC C08K003/04（2） C08K009/04（2） C09D007/62（2）
发明人
公开年 2021（3）
申请年 2020（3）
专利权人

Surface-treatment composition used for vibration damping steel sheet, comprises polymer resin and inorganic nanoparticles having preset average aspect ratio.

KIM J, LEE J, KIM Y, CHOI H, CHOI Y, KIM J T, KIM Y S, CHOI Y H, CUI H, JIN Y, LI Z

Reinforced wear-resistant polyethylene water supply pipe useful for trenchless construction, comprises pipe body including a pressure-resistant layer and compatible layer and compatibility layer arranged inside the pressure-resistant layer.

LIU J, TIAN X, LIU P, JIN R, ZHOU W, ZHANG W

Lubricating rust-proof pin shaft, comprises pin shaft main body located between pin shaft head and pressing cover, pin shaft head fixedly connected with pin shaft main body, and pressing cover movably connected with pin shaft main body.

SHI W, WANG W