PXC Slotted Wiring Duct: 1, Material of wiring duct: PVC(Grey), good insulation and heat-resisting up to 85 degree. 2, Struction of wiring duct: Made up of duct bottom and lid, with two out-holes designed at the bottom. 3, Certificate of wiring duct: CE, SGS 4, Sizes of wiring ducts