The number of series hooks can not be more than 10 per unit. In order to improve the suspension quality, the connecting straight bar segment is best close to the well close when stationary, if not, should reduce the number of series or increase the unit group.Hanging, the special bolts or other hanging pieces of the perforation will be fixed on the wall, hook fixed, the Arc hook vertical sag-like. A series of hooks, such as cable suspension, should be used in tandem suspension. 22.