China National Standards

China Manholes atmospheric use Industry Standards English PDF List

  •  China "Manholes atmospheric use" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    HG/T 21525-2014 Quick open manholes for atmospheric use
    常压旋柄快开人孔    		 China Chemical Industry Standards
    Manholes atmospheric use
    English PDF
    HG/T 21515-2014 Manholes for atmospheric use
    常压人孔    		 China Chemical Industry Standards
    Manholes atmospheric use
    English PDF

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