National responsibility for promoting technological progress

1200 tons full ground crane of hanging arm since disassembly test is once on success has! full ground crane of advantage is construction fast in place, 1200 tons level full ground crane hanging arm framework length over 15 meters, weight more than 60 more tons, to ensure framework not need with other any equipment on can himself Assembly up, and hanging arm since disassembly is hydraulic, and electrical control, the technology of integrated, in test zhiqian, technicians on how positioning, and slip, and find are, problem, a details a details to for simulation simulation, Real came out, a test was successful.