As a kind of bridge, viaduct plays a very important role in infrastructural projects. It’s not only help railroad or expressway cross obstacles such as valleys, rivers and roads, but also can disperse urban traffic density and improve transportation efficiency. China is very crazy at basic construction, viaduct construction can not fall naturally. China’s viaduct line network can be said that the world’s largest density, the longest distance, no matter from a technical point of view or number are ranked first in the world. And all thing will attributed to heavy equipment of bridge machine -SLJ900 / 32. In accordance with the Twenty-one China Railway developed this erecting machine weighs 580 tons. It achieved the lifting beam, transport beam, beam integration operations. The longest bridge can be set up 32 meters long, can carry 900 tons of weight bridge. The working principle is very simple, lift the bridge, then put it on the two pillars. With the help of bridge erecting machine, building viaduct is as simple as building blocks. But for countries with underdeveloped technology and no erecting machines, building viaducts are a painful thing. Our neighboring India, because they absence advanced bridge erecting machine, have to use traditional suspension method. The entire bridge is too heavy, can not afford to hang up. It can only be divided bridge segment, and then use a special suspension equipment hang from the bridge and splice. The bridge between the connection with the reinforcement, and then use special glue for bonding. The bridge between each pillars is glued together, do not know how the quality of the bridge. So the question is, do you dare to cross the viaduct made in India?