tcc/servers/bedrock/behavior_packs/vanilla_1.16/recipes/chain.json

{
    "format_version": "1.16",
    "minecraft:recipe_shaped": {
        "description": {
            "identifier": "minecraft:chain"
        },
        "tags": [
            "crafting_table"
        ],
        "pattern": [
            "N",
            "G",
            "N"
        ],
        "key": {
            "N": {
                "item": "iron_nugget"
            },
            "G": {
                "item": "iron_ingot"
            }
        },
        "result": {
            "item": "chain",
            "count": 1
        }
    }
}