GB - Chinese national standards

Test method of glass-lined equipments—Part 3Resistance to mechanical impact via the pistol test

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Norminal capacity and diameter of glass-lined equipment

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Hardmetals—Vickers hardness test

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Hardmetals—Vickers hardness test

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Method for evaluating the susceptibility to intergranular corrosion of aluminum alloys

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Optical emission spectrometric analysis method of aluminum and aluminum alloys

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Photoelectric direct reading atomic emission spectrometric method of aluminium and aluminium alloys

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Square head bolts—Product grade C

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hexagon socket set screws with cup point

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Countersunk head double nib bolts

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