... IEC 01BV,BLV 450/750VNominal section(mm2)Number/diameter of core(mm)Maximum outer diameter(mm2)Reference weight(Kg/km) ... , including flat wire, round wires,etc,with different colours.4. According to its core number, inclding single core wires,multi-core wires,ect. ... customer.7. Strictly comply with the international standard.electric Wire(pvc wire, building wire) electric wire, pvc wire, building wire