... x6"box, 20mm/25mm knockouts3) material : pvc4) Uses : electrical or construction5)Payment terms: 30% T/T, balance before ... good fire-resistant3)Installation during the process of constuction ,electrical equipment ,components4)Easy to equipment ,long life for use5 ... of construction ,electrical equipment , components12)PVC 2 gang box are used as surface mounting ,control box , switch box or general ...