GPT wire is a type of American standard cable, characterized by a single core and PVC insulation. It is widely used in low-voltage cables for automotive circuit wiring, ships, and various transportation vehicles. Its conductor is made of twisted soft copper wire that meets the requirements of ASTM B3. In addition, it follows the SAE (Society of Automotive Engineers) J1127 standard. When selecting GPT wires, users need to choose the appropriate type and specification of wire according to their actual needs.