China Erecting Bridge Girder Launcher Manufacturers and ...
Erecting bridge girder launcher. Take the JQ900A gantry double main beam three-legged bridge machine as an example, mainly by the arm, No.1 lifting trolley, No.2 lifting trolley, No.1 column, No.2 column, No.3 column, hydraulic system, electrical System, diesel generator set and safety protection monitoring system
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