https://www.guangzhoulongji.com/electical-wires/power-cable/soft-copper-core-pvc-insulated-steel-tap.html
Soft copper core PVC insulated steel tape armored PVC sheathed flame retardant (A, B, C) fire-resistant power cable
Model: Z (A, B, C) N-VRV62 (1 core), Z (A, B, C) N-VRV22 (2 to 5 core)
Conductor material: Copper
Refractory: Mica tape
Insulation material: Flame retardant PVC
Armored material: Stainless steel strip (1 core), painted steel strip, galvanized steel strip,
Sheath materia: Flame retardant polyvinyl chloride
Product standard: GB/T12706.1-2008, GB/T19666-2005