China National Standards

China Helium leakage test Industry Standards English PDF List

  •  China "Helium leakage test" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    HG/T 4080-2009 Helium leakage test method for urea reactor
    尿素合成塔氦渗漏试验方法    		 China Chemical Industry Standards
    Helium leakage test
    English PDF

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