SELECT 
  object_id, 
  name 
FROM 
  cscart_seo_names 
WHERE 
  name IN (
    'welding', 'welding-machine', 'cutting-machine'
  ) 
  AND type = 'c' 
  AND lang_code = 'en'

Query time 0.00065

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.21"
    },
    "table": {
      "table_name": "cscart_seo_names",
      "access_type": "range",
      "possible_keys": [
        "name",
        "type"
      ],
      "key": "type",
      "used_key_parts": [
        "name",
        "type",
        "lang_code"
      ],
      "key_length": "761",
      "rows_examined_per_scan": 3,
      "rows_produced_per_join": 3,
      "filtered": "100.00",
      "index_condition": "((`s2cart`.`cscart_seo_names`.`name` in ('welding','welding-machine','cutting-machine')) and (`s2cart`.`cscart_seo_names`.`type` = 'c') and (`s2cart`.`cscart_seo_names`.`lang_code` = 'en'))",
      "cost_info": {
        "read_cost": "1.91",
        "eval_cost": "0.30",
        "prefix_cost": "2.21",
        "data_read_per_join": "5K"
      },
      "used_columns": [
        "name",
        "object_id",
        "type",
        "lang_code"
      ]
    }
  }
}