This 30-coupler ground telephone cable has a telephone cable (A-2Y (ST) 2Y) with 0.6 mm diameter annealed copper wire and 1.4 mm thick ASTM D1248 polyethylene (PE) insulation. Can be used in telephone establishments or buildings for digital or analog communication. This product has polyethylene (PE) coating with ASTM D1248 14.25mm thickness, polyester tape, ground wire, aluminum foil and DIN VDE 0816 standard and Iran Telecommunication and sells in electrical and electronic equipment market such as wire and cable. Arrives.