{
  "ring_codes": {
    "new": "NGCD-055 MT\tB02 I\nNGCD-055 MT\tB05 NULL, U\nNGCD-055E MT\tB01",
    "old": "NGCD-055 MT\tB02 I\nNGCD-055 MT\tB05 NULL, U"
  },
  "serial": {
    "new": "NGCD-055, NGCD-055E",
    "old": "NGCD-055"
  }
}