AISA INTERNATIONAL MACHINERY TRADE COMPANY stands as the exclusive and the largest company engaged in used construction machinery in Shanghai. Our company enjoys a long-term cooperation with world famous manufacturers, such as Caterpillar, Komatsu, Hitachi and so on. We keep good relationship with Japan, Taiwan, Singapore, Malaysia, Pakistan, India, etc. We have beeen engaged in selling used excavators, loaders, rollers and graders of Caterpillar, Komatsu and Hitachi. We have a big warehouse in Shanghai for our machines. We are committed to doing more for the development of the construction machinery industry.