: tower cranes ranging from QTZ20 to QTZ160; SC200/200 construction elevators; concrete mixers ranging from JZC350 to JZC750 and from JS350 to JS2000; concrete batchers ranging from PLD800 to PLD4800; concrete mixing plants ranging from HZS25 to HZS180; electric or diesel power concrete pumps ranging from HBTS60 to HBTS80; and conservancy machines of different types.