国家/地区 中国（5）
IPC部 B（5）
IPC大类 B29（5）
IPC小类 C08L（5） F16L（5） C08K（4）
B29D（3） B29C（2） C09D（2）
IPC F16L009/14（5）
发明人 HUANG Y（2）
公开年 2018（2）
申请年 2017（2）  2022（2） 
专利权人

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z

Modified polyethylene wearable composite pipe for water supply and drainage of municipal and building, has glass fiber line that is provided with multiple layers on outer layer pipe structure, inner tube body and outer layer pipe body fixedly connected with the inner layer pipe body.

LIN J

Continuous carbon fiber winding composite reinforced polyethylene gas pipe comprises polyethylene gas pipe component comprising pressure-resistant layer containing graphene functional masterbatch and inner lining layer.

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

Corrosion resistance graphene oil delivery pipe, has butyl rubber layer is fixed to metal net, where buffer rubber block is fixed between butyl rubber layer and metal net, and outer wall coating of metal net layer is fixed to graphene layer.

HUANG Y, BIAN D, WANG J, ZHANG X, SHEN H

Graphene-based inorganic fiber pipeline comprises inner lining layer, fiber reinforcement layer and outer protective layer, where inner lining layer and outer protective layer are made of high-temperature-resistant adhesive material.

HUANG Y, HUANG Z