3 thoughts on “What industry category does air produce other gases for raw materials”

  1. In industrial, products with atmospheric temperatures are collectively referred to as industrial gas products, including hydrogen, oxygen, nitrogen, sorbe, qi, 氪, qi, qi, chlorine, carbon monoxide, etc. According to the "Classification and Classification of the National Economic Industry" formulated by the National Bureau of Statistics, China attributed the industrial gas industry to other basic chemical raw materials manufacturing (C2619).

  2. 1. Food processing and food, beverage manufacturing
    2, tobacco products
    3, textile industry, chemical fiber manufacturing
    4, clothing, shoe and hats, leather manufacturing n5, wood processing And wood, bamboo, vine, brown, grass products, furniture manufacturing
    6, papermaking and paper products, printing industry, cultural and educational sports, office supplies manufacturing
    7, non -metallic mineral products industry (including cement, glass, glass, glass, glass , Ceramics, refractory materials, etc.)
    8, black metal, non -ferrous metal smelting and voltage processing industry
    9, metal products
    10, oil processing, coking processing industry
    11, chemical raw materials and chemistry Product Manufacturing
    12, pharmaceutical manufacturing
    13, rubber products, plastic products
    14, general equipment and dedicated equipment manufacturing
    15, transportation equipment manufacturing
    16, electrical electricity Machinery and equipment, cable manufacturing
    17, communication equipment, computers and other electronic equipment manufacturing
    18, instrument manufacturing
    19, handicrafts and other manufacturing industries

  3. Air is a raw material for making nitrogen fertilizers, because the air has nitrogen, and the purpose of nitrogen is: manufacturing nitrogen fertilizer, nitrogen filling into the food packaging bag can be corrosive, liquid nitrogen can be used as refrigerant.
    The choice B

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