GB - Chinese national standards

Covered electrodes for manual metal arc welding of nickel and nickel alloys

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Aluminium base brazing filler metals—Part 1Solid brazing filler metals

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Die casting zinc alloys

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Copper and copper alloy castings

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Magnesium alloy castings

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Magnesium alloy castings

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Zinc alloy die castings

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Test specimens for nonferrous diecasting alloys

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Methods for the calibration of vibration and shock pick-ups--Resonance frequencytesting of undamped accelerometers on a steel block

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Methods for the calibration of vibration and shock pick-ups--Primary calibration by centrifuge

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