What Difference BV, BVV, BVVB, BVR Cable Wire?
What Difference BV, BVV, BVVB, BVR Cable Wire? VV: the term refers to the two layer of PVC wire BV: PVC insulated copper wire, single core wire BVV:PVC sheathed copper wire, two wire BVVB: PVC sheathed copper wire, three wire BVR: copper core PVC insulation wire, flexible wiring fixed occasions.