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    • Standard  Code Standard English Title Standard Class Order
    GB/T 3273-2015 Hot-rolled steel plates and strips for automobile frames

    China National - GB Standards
    GB/T 31979-2015 Steel wire ropes—Determination of rotational properties

    China National - GB Standards
    GB/T 31949-2015 Manganese ores—Determination of mercury content—Solid sampling and direct mercury analysis method

    China National - GB Standards
    GB/T 31948-2015 Chromium ores—Determination of mercury content— Solid sampling and direct mercury analysis method

    China National - GB Standards
    GB/T 31947-2015 Iron ores—Determination of mercury content—Solid sampling and direct mercury analysis method

    China National - GB Standards
    GB/T 31946-2015 Steel plates for steel penstock in hydropower station

    China National - GB Standards
    GB/T 31945-2015 Steel plate for self-elevating drilling units leg structure

    China National - GB Standards
    GB/T 31944-2015 Corrosion resistant steel plates for cargo oil tanks

    China National - GB Standards
    GB/T 31943-2015 Continuously cold rolled steel strips for precision welded tubes

    China National - GB Standards
    GB/T 31942-2015 FeCrAl foil for metallic honeycomb substrates

    China National - GB Standards
    GB/T 31941-2015 Non-nuclear safety class welded carbon steel and alloy steel pipes for nuclear power plant

    China National - GB Standards
    GB/T 31940-2015 Bi-metal composite corrosion resistance steel pipe for fluid transportation

    China National - GB Standards
    GB/T 31939-2015 Hot-rolled steel plates (sheets) and strips for coal mine refuge chamber

    China National - GB Standards
    GB/T 31938-2015 Steel plate for coal slurry pipeline

    China National - GB Standards
    GB/T 31937-2015 SAWL steel pipe for pipeline of coal slurry

    China National - GB Standards
    GB/T 31936-2015 Rolls for welding steel pipe

    China National - GB Standards
    GB/T 31935-2015 Corrosion of metals and alloys—Corrosion test for intergranular corrosion susceptibility of low-Cr ferritic stainless steels

    China National - GB Standards
    GB/T 31934-2015 The measuring and calculation method for heat storage capacity of high radiative coating

    China National - GB Standards
    GB/T 31933-2015 Test method for the corrosion of steel bar embedded in concrete in chloride enviroment

    China National - GB Standards
    GB/T 31932-2015 Method for electromagnetic automatic ultrasonic testing for thicker steel plates

    China National - GB Standards
    GB/T 31931-2015 Zinc or zinc alloy coating on steel sheets or strips—Determination of hexavalent chromium content—1,5-Diphenylcarbohydrazide (diphenylcarbazide) spectrophotometric method

    China National - GB Standards
    GB/T 31930-2015 Metallic materials—Ductility testing—Compression test for porous and cellular metals

    China National - GB Standards
    GB/T 31929-2015 Welded stainless steel pipes for ship

    China National - GB Standards
    GB/T 31928-2015 Seamless stainless steel tubes and pipes for ship

    China National - GB Standards
    GB/T 31927-2015 Zinc and aluminum based coatings on steel sheets and strips—Determination of lead and cadmium contents—Inductively coupled plasma mass spectrometric method

    China National - GB Standards
    GB/T 31926-2015 Zinc and aluminum based coatings on steel sheets and strips—Determination of lead，cadmium and chromium contens—Glow discharge atomic emission spectrometry method

    China National - GB Standards
    GB/T 31925-2015 Ultrasonic test methods of heavy wall thickness seamless steel pipes and tubes

    China National - GB Standards
    GB/T 31924-2015 Nickel pig iron—Determination of nickel content—The dimethylglyoxime gravimetric method

    China National - GB Standards
    GB/T 31923.2-2015 Iron ores for blast furnace feedstocks—Determinaction of low-temperature reduction-disintegration indices by static method—Part 2: Reduction with CO and N2

    China National - GB Standards
    GB/T 31923.1-2015 Iron ores for blast furnace feedstocks—Determination of low-temperature reduction-disintegration indices by static method—Part 1: Reduction with CO、CO2、H2 and N2

    China National - GB Standards

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