国家/地区 中国（2）
IPC部 B（2）
IPC大类 B05（2）
IPC小类 B05D（2）
IPC
发明人
公开年 2021（2）
申请年 2020（2）
专利权人

Processing and molding corrosion-resistant screw, comprises e.g. preparing pretreated wire by adding specific series wire into hanging furnace, heating, cooling, then adding processed wire into cold heading machine, and post-processing.

DENG Q

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