How long does it take to dig a 3,000-meter tunnel in China? Fifty years ago, it required over 1,000 workers for four years; now, it only takes less 6 to 12 month. This remarkable progress owes much to a "giant": the tunnel boring machine (TBM). "From the skies to the underground," China’s high-end equipment manufacturing is creating more possibilities for a better life worldwide. #VastChineseMarket