Our tinned copper stranded wires are of high quality and good reputation. Their conductivity is good and the life is long enough. Many clients appreciate our products and establish long standing relationship with us. If you are interest in our products, please contact us .yourreply are appreciated. Specification: Tinned copper stranded wire 1Inner conductor:tinned copper 2Packing:in roll 3Tensile strength:>=250 4Core:5/0.18