1.stranded housing copper wire2. copper purity-99.97%3.CCC,CE,ROHS certificate4.Professional QC inspection 5.Free Sample1 StandardGB 5023.11997 , JB 8734.15-1998, Q/ZEL 02-2002, GB 5023.17-1997, IEC2272 Voltages U0/U: 450/750V,300/500V,300/300V.,(600/1000V also available)Max. permissible continuous operating temperature of the conductor:..