... x3",3"x6"box, 20mm/25mm knockouts3) material : pvc4) Uses : electrical or construction5)Payment terms: 30% T/T, balance ... good insulation property,good fire-resistant3)Installation during the process of constuction ,electrical equipment ,components4)Easy to equipment ,long ... and cable from easy damage11) Installation during the process of construction ,electrical equipment , components12)PVC 2 gang box ...