Founded in 1991, Shanghai Una International Trade Corp.Ltd.is a company which, is engaged in exporting Second-hand Construction Machinery, including Excavator, Truck Crane, Bulldozer,Loader, Roller, Grader and with corresponding spare part., having been in this field for more than 20 years, we have successfully exported our machines to many countries think what customer cares, do what client wants , we keep the service philosophy and devote ourselves to what customer needs, and provide ...