• 幸运飞行艇:官方开奖结果历史

    Natural Gas Industry

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    Natural Gas Industry


    Guanhuan can produce cryogenic valves that meet the standards of BS6364 and GB/T24925, and the lowest test temperature can reach -196°C. Widely used in low temperature industries such as LNG, LPG, ethylene and air separation.
    The main products are ultra-low temperature gate valves and ultra-low temperature ball valves.
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