Summary | Workers celebrate the completion of the tunnel boring
machine (TBM) Caiyun in Kunming, capital of Southwest China's
Yunnan province, Aug 1, 2017. The Chinese made TBM, which has a
9.03-meter cutter head, was completed in Kunming on Tuesday and
it will be used to drill a railway tunnel in the province.
machine (TBM) Caiyun in Kunming, capital of Southwest China's
Yunnan province, Aug 1, 2017. The Chinese made TBM, which has a
9.03-meter cutter head, was completed in Kunming on Tuesday and
it will be used to drill a railway tunnel in the province.
chinadaily.com.cn | 02 August 2017