brief introduction: Multicore wire: there are two or multiple conductors in the insulation layer, which have the advantages of good softness, good heat dissipation, good skin resistance and good break resistance. Disadvantages are: poor tensile resistance, easy to break mold, poor anti-surge current, inconvenient shaping. The difference between multi-core wire and single-core wire: in its structure is different, because the multi-core is soft, not easy to break the wire core, it is suitable for the wire in the tube