国家/地区 中国（2）
IPC部 F（2）
IPC大类 F16（2）
IPC小类 F16L（2）
IPC F16L009/14（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

Expansion joint of catalytic cracking, has corrugated pipe and flange that are made of titanium material and inner wall of corrugate pipe is provided with anti-corrosion layer.

GU L, MIAO X, QIAN Y, XIA G

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