Hunan Tuotian Road & Bridge Engineering Machinery Co., Ltd. (zvino pashure pavanzi inonzi: Hunan Tuotian) iri muguta rinokurumbira ravashanyi - Chenzhou (Rupara rweHunan), maminini 20 achibva kuChenzhou Xi High-speed Rail chites, Maminita 15 kubva kuChenzhou Beihu Airport nemotokari. Hunan Tuotian akarongwazve kubva kuHunan Long March Road & Bridge Equipment Manufacturing Co., Ltd. uye Hunan Shenghua Steel Structure Construction Co., Ltd, iyo iri kambani yenyanzvi yeRoad & Bridge inobatanidza kugadzirwa, kutengesa, kugadza uye kubviswa, mabasa okugadzira nokuchengeta. Zvinhu zvikuru zvinobatanidza: 321-Rudya rwakafanotaurwa mugwagwa mugwagwa, 200-Rudya rwakafanotaurwa mugwagwa mugwagwa, Bhiriji rinofamba muguta, Kuvakwa kwenguva yakawanda, pakuvaka uye zvichingodaro.