国家/地区 中国（3）
IPC部 F（3）
IPC大类 F16（3）
IPC小类 F16L（3）
IPC F16L057/02（3）
发明人
公开年 2023（3）
申请年 2022（3） 
专利权人

Polyethylene solid wall pipe has flocculent layer graphene and high density polyethylene layer that are provided with group of radiating holes connected with each other.

YUAN S

Cold-resistant and low-temperature resistant metal hose used in aviation, aerospace, petroleum, chemical engineering, metallurgy, electric power, paper making, wood, textile, construction, medicine, food, tobacco, and transportation.

ZHANG D, HUANG R, CHEN S

Aramid fiber winding composite pipeline for conveying hydrogen, has wearable layer located in inner layer of hydrogen blocking layer, where wearable layer is wearable plastic and is provided between core tube layer and outer protective layer.

WANG Y, MA Z, ZHAO M, LI Y, YU J, TANG Z