1 clear,no halogen ,without drug 2 copper 3 CE,SGS,ISO9001 CERTIFICATION First introduce goods : 1 the conductor material is copper wires ,so that resistance is weak ,and conductor electricity is better2 pvc and xlpe insulated ,pvc and xlpe jacket ,which can stands 90°C in working3 braid and foil shield ,so that can reduce the noise in working4 there are many tesrs before our goods put in stock , ...