{
  "type": "pneumaticcraft:pressure_chamber",
  "inputs": [
    {"tag": "forge:double_sheets/compressed_iron"},
    {"item": "mekanism:basic_universal_cable"},
    {"tag": "forge:double_sheets/compressed_iron"}
  ],
  "pressure": 4.5,
  "results": [
    {
      "item": "ad_astra:cable_duct"
    }
  ]
}