China National Standards

China Special fittings Industry Standards English PDF List

  •  China " Special fittings" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    HG 20519.33-1992 (Piping layout and isometric drawings on pipes, fittings, valves and pipe special pieces legend)
    		China Chemical Industry Standards
    Special fittings
    English PDF
    HG 20519.20-1992 (Special fittings map)
    		China Chemical Industry Standards
    Special fittings
    English PDF

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