Silver Trading Co., Ltd. Hai Chuanteng dig on the first branch in east China is the most powerful large-scale provider of used construction machinery, all year round for country / highway. Bridge. Tunnel. Railway engineering contractors provide a variety of second-hand idle machinery: excavators, road rollers, loaders, forklifts, bulldozers, cranes, graders, automobile hoists. wharf cranes. crawler cranes and other construction machinery and equipment: