国家/地区 中国（2）
IPC部 B（2）
IPC大类 B32（2）
IPC小类 B32B（2）
IPC B32B003/08（2）
发明人
公开年 2022（2）
申请年 2022（2）
专利权人

Elastic knitted fabric, has base layer and surface layer provided with multiple elastic belts, where middle position of elastic belt is uniformly provided with air exchange holes along length direction, and cavities communicate through holes.

CHEN J, XU H

Composite directional drainage composite membrane, comprises geotextile, geomembrane, water-conducting rib and geotextile composite, where material of water-conducting rib is made of polypropylene, polyethylene, polyethylene terephthalate, polyamide fiber or plastic material.

GAO X, WANG J, YU H, DONG F, ZHAO C, MAN X, LI K, LIANG X, LU S