SELECT 
  p.tracking, 
  p.amount, 
  p.min_qty, 
  p.max_qty, 
  p.qty_step, 
  p.list_qty_count, 
  p.out_of_stock_actions, 
  p.product_type, 
  pd.product 
FROM 
  netting_products AS p 
  LEFT JOIN netting_product_descriptions AS pd ON pd.product_id = p.product_id 
  AND lang_code = 'en' 
WHERE 
  p.product_id = 836

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "const_condition": "1",
    "nested_loop": [
      {
        "table": {
          "table_name": "p",
          "access_type": "const",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "ref": ["const"],
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "pd",
          "access_type": "const",
          "possible_keys": ["PRIMARY", "product_id"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["product_id", "lang_code"],
          "ref": ["const", "const"],
          "rows": 1,
          "filtered": 100
        }
      }
    ]
  }
}