Installation of suspender: install special components or drill holes to install expansion bolts and suspender according to the lifting point positioning point, and install light steel keel pendant on the suspender. 3) Install 50 light steel main keels: install the light steel keels on the pendant, connect the two adjacent keels with connectors, stagger the joints of the two adjacent rows of keels, and adjust them to be horizontal, straight or round after installation. 4) Install the auxiliary keel: will hook up the keel