... damage8)Installation during the process of construction ,equipment, component9) PVC 2 gang box, 1 gang box with no smell ... Installation during the process of construction ,electrical equipment , components12)PVC 2 gang box are used as surface mounting ,control box ... switch box or general service box sizes: 86x86x45 surface box ,pvc material, 100pcs/outer packing , one gand box sizes: 86x86x33cm ...