1The conductor is tinned with 7*0.127 tinned copper, which has good effect. 2Insulation material: insulated with heat-resistant PVC, safe to use. 3With acid and alkali resistance, oil resistance, moisture resistance, mildew resistance, easy to peel and cut. 4Insulation: Insulation thickness greater than 0.41, plus or minus 0.1 outer diameter error. 5Generally used in the connection of internal wiring of electronic, electrical and equipment instruments, large transformer and lamps, and motor lead wires.