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  • Sustainable Development

    • Ethics

    • Safety

    • Sustainable procurement

    • ACT for a sustainable future

    • ACT for all

  • Gas Applications

    • Agri & Aquaculture

    • Analysis & Quality Control

    • Blanketing

    • Cutting

    • Electronics Technology

    • Freezing & Chilling

    • Glass

    • Heat Treatment

    • Industrial Cryogenics

    • Modified Atmosphere Packaging (MAP)

    • Water Treatment

    • Welding

  • Products & Services

    • Industrial Gases

    • Specialty Gases

    • Premium Gases

    • Medical Gases

    • Supply Modes

    • Services

    • NEXELIA™

  • Resources

    • For customers

      • Safety Data Sheets (SDS)

      • Gas Encyclopedia

      • Easy Gas Converter App

    • For suppliers

      • Our policies

      • Air Liquide Coupa Supplier Portal (CSP)

  • About us

    • Discover Air Liquide in China

      • Overview

      • Innovation Campus Shanghai

      • News center

      • Work with us

    • Our activities

      • Large Industries

      • Industrial Merchant

      • Electronics

      • Healthcare

      • Hydrogen energy

      • Engineering & Construction

      • Global Markets & Technologies

      • 医疗保健

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Air Liquide is a world leader in gases, technologies and services for industry and health. Present in 60 countries with 66,300 employees, the Group serves more than 4 million customers and patients. Oxygen, nitrogen and hydrogen are essential small molecules for life, matter and energy. They embody Air Liquide’s scientific territory and have been at the core of the Group’s activities since its creation in 1902.
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