Herrenknecht AG
Werke:
- Di tie sui dao - shen ru di xia : man zu cheng shi jiao tong xu qiu
- Tie lu sui dao - chuang xin de sui dao jue jin ji shu : shi xian kuai jie qing song de lü cheng
- Gong yong shi ye sui dao - ying yong fei kai wa fang shi : gao xiao huan bao di pu she guan gao
- [Road tunnelling - record-breaking dimensions]