Ain Bearings News Today : Breaking News, Live Updates & Top Stories | Vimarsana

BEIJING, Dec. 17 (Xinhua) Chinese researchers have developed a set of large diameter main bearings for a shield tunneling machine, according to the Chinese A

Institute of metal researchChinese academy of sciencesChinese academyMetal researchHeight metersAin bearingsShield tunnelingThe casLarge diameter