姚占勇

Professor

Gender:Male

Patents

一种用于路面裂缝修补的速凝抗裂冷灌缝材料及其制备方法

Hits:  Release time:2024-10-01
Affilication of Author(s):齐鲁交通学院 Type of Patent:发明 Application Number:201910764570.0 Number of Inventors:4 Service Invention or Not:no Application Date:2019-08-19 Publication Date:2020-08-04 Authorization Date:2020-08-04