HVV 4*0.5 Telephone Cable Color Code 1.0.5mm BC conductor 2.HDPE ... .PE0.89mm insulation 1.Product Name: HVV 4*0.5 Telephone cable Color Code 2.Specification:0.5mm BC conductor HDPE ... link , support the low speed data transmission, language application, digital telephone, fax, pabx, digital equipment connection, telecommunications comprehensive system of branch ...