Textile
| Sat 06 Jun 2026
Beijing, June 6 -- CCCC First Highway Engineering Group and Construction Engineering Co Ltd of CCCC First Highway Engineering Group have sought patent for Device for Grouting Reinforcing Steel Bar Sleeve. This invention was developed by Zhang Changqing, Ni Tongtao, Zhong Li, Zhang Yu, Zhang Yongfeng, Sun Guoliang, Lu Dingxiang, ..