After the steel pipe is placed on the booth platform, and the crane C does not move to the upper limit, press the "crane C" on the man-machine interface to move
After the steel pipe is placed on the pipe spreading platform and the crown block C does not move to the upper limit, press "crane C" on the man-machine interface to move
After the steel pipe is placed on the spread pipe platform, and the C crane does not move to the upper limit, press "Crane C walking" at the man-machine interface