国家/地区 中国（4）
IPC部 B（4）
IPC大类 B05（4） C09（3）
IPC小类 B05D（4）
IPC B05D007/22（4）
发明人
公开年 2021（4）
申请年 2020（3） 
专利权人

Blind hole filling using reduced graphene as seed layer comprises pre-processing drilled circuit board, removing glue residue and forming manganese dioxide layer, forming graphene oxide layer on surface of polyaniline layer and reverse pulse electroplating.

XIE H, LUO Z

Anti-sulfur inner coating anti-corrosion structure of medium and large container useful in oil and gas field, comprises water blasting treatment layer on metal substrate, bottom air spraying layer, and surface air spraying layer.

LUO J, DU Y, LI R

Method for coating natural gas pipelines, involves coating layer of corrosion-resistant paint on outer wall of pipeline, cold pressing pipeline, inspecting coated pipelines and storing and installing inspected pipelines.

ZHANG H

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