Tianhongxiang 70 mm² flame-retardant BV plastic-coated copper wire is a heavy-duty fixed wiring cable designed for large-scale industrial and commercial engineering projects. Adopting 19-strand high-purity oxygen-free copper conductor and premium flame-retardant rubber-insulated PVC sheath, it complies with GB/T 5023.3-2008 national standard, featuring high current-carrying capacity, excellent flame retardancy and durable structure, perfectly meeting the bulk procurement needs of engineering contractors, power distribution equipment manufacturers and cable distributors.