... aluminium MFG 3.Metal:genuine bare aluminium 4.excellent withstand voltage properties product categoryround aluminum wireproduct descriptionZLY seriestempreture classNon-impregnated: ... 00mmonline detection itemsonline flaw dection, online dielectric voltage testmajor test itemsconductor resistence,tensile strength, percentage elongation, breakdown voltage, rebound, etc.reference standardsGB/T7673 ...