SELECT 
  cscart_ult_product_descriptions.product_id, 
  cscart_ult_product_descriptions.short_description, 
  IF(
    cscart_ult_product_descriptions.short_description = "", 
    cscart_ult_product_descriptions.full_description, 
    ""
  ) AS full_description, 
  cscart_ult_product_descriptions.meta_keywords, 
  cscart_ult_product_descriptions.meta_description, 
  cscart_ult_product_descriptions.search_words, 
  cscart_ult_product_descriptions.promo_text 
FROM 
  cscart_ult_product_descriptions 
WHERE 
  cscart_ult_product_descriptions.product_id IN (
    3935, 1334, 1335, 1336, 1337, 1338, 1339, 
    1340, 1341, 1342, 1343, 1344
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'en'

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "9.47"
    },
    "table": {
      "table_name": "cscart_ult_product_descriptions",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "product_id",
        "company_id"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "lang_code",
        "company_id"
      ],
      "key_length": "13",
      "rows_examined_per_scan": 12,
      "rows_produced_per_join": 12,
      "filtered": "100.00",
      "index_condition": "((`gaseus`.`cscart_ult_product_descriptions`.`company_id` = 1) and (`gaseus`.`cscart_ult_product_descriptions`.`product_id` in (3935,1334,1335,1336,1337,1338,1339,1340,1341,1342,1343,1344)) and (`gaseus`.`cscart_ult_product_descriptions`.`lang_code` = 'en'))",
      "cost_info": {
        "read_cost": "8.27",
        "eval_cost": "1.20",
        "prefix_cost": "9.47",
        "data_read_per_join": "45K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "company_id",
        "short_description",
        "full_description",
        "meta_keywords",
        "meta_description",
        "search_words",
        "promo_text"
      ]
    }
  }
}

Result

product_id short_description full_description meta_keywords meta_description search_words promo_text
1334 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1335 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1336 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1337 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1338 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1339 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1340 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1341 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1342 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1343 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
1344 Vulkan LDS1 PN25 line dome pressure reducer with control pressure reducer, complete with control pressure reducer, material: brass/Viton, single-stage design, maximum inlet pressure: 25 bar, output pressure: 0.5 – 16 bar adjustable, maximum output: 1,100 Nm³/h air at 16 bar outlet pressure, input: internal thread G1RHi, output: internal thread G1RHi, input pressure gauge: optional (add in the selection window), output pressure gauge: optional (add in the selection window)
3935 <p>In-line dome pressure reducer Vulkan LD1 MD on both sides. G 1 RHi, single-stage design, without pressure gauge. Maximum inlet pressure: 100 bar (oxygen max. 40 bar!). Output pressure: 0.5 - 99 bar adjustable (oxygen 0.5 - 39 bar!). Maximum output: 2,400 Nm³/h (oxygen 2,100 Nm³/h). Inlet and outlet: G1RHi. Width x height x depth: 130 x 170 x 130 mm. Optionally also available with control pressure reducer. Available for various gas types (please select in the selection window!): Oxygen: Item No. 108535 (pe max. 40 bar pa 0.5 - 39 bar!). CO2/Argon: Item No. 106535. Helium: Item No. 10653526Nitrogen: Item no. 103535Hydrogen: Item no. 104535Compressed air: Item no. 107535</p>