... , long life for use 5) good apperance 1) name:switch box, 2 gang box , 1 gang box,flushing box,surface box2) sizes ... surface mounting control box , junction box or general service box7)switch box protects wire and cable from easy damage8)Installation during ... of construction ,electrical equipment , components12)PVC 2 gang box are used as surface mounting ,control box , switch box or general service box