China National Standards

China Plate flange handholes Industry Standards English PDF List

  •  China "Plate flange handholes" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    HG/T 21529-2014 Plate flange handholes
    板式平焊法兰手孔    		 China Chemical Industry Standards
    Plate flange handholes
    English PDF

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