Through Rhine technical test, relevant certificates of products can be provided. SGS environmental protection report, ROHS environmental protection report. It adopts environment-friendly oxygen free copper, tight stranding, low heating, good conductivity, environment-friendly pvc105 material, high and low temperature resistance, aging resistance, corrosion resistance, VW - / flame retardant, bright and durable color, long service life, excellent electrical insulation performance and high voltage. Small high frequency loss, low eccentricity, safe and reliable.