Nitrous Oxide, Helium Gas, Ethylene Gas manufacturer / supplier in China, offering Custom Krypton Neon Mixtures for Scientific Instruments with Exact Gas Ratios Designed for Your Research Applications, Custom Mixed Argon and CO2 Gas for Aerospace Welding with CO2 Precisely Controlled 2%-15% for Special Alloy Welding, Custom Co in N2 Mixture for Safety Detectors with Precisely Calibrated Co Levels From 50ppm to 2% for Your Alarm Systems and so on.
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