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A kind of heat treatment method improving ferrite ductile cast iron low-temperature impact toughness
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Paint spraying process of axle box swivel arm of high-speed train
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Special balance boring cutter device for large-aperture and high-precision boring
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Special clamp for motor shell macropore series for fine boring rail train
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Special detection tool for measuring inner conical surface matched with lower body of shaft box of bogie of motor car
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Special detection tool for measuring upper body matching external conical surface of motor car bogie axle box
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Compound fixture for processing matched seam allowance on upper body of motor car bogie axle box
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Adjusting fixture used for processing matched seam allowance of axle box upper body
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Movable clamp fixing frame for processing matching seam allowance for axle box upper body
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Movable fixture used for processing matched seam allowance of axle box upper body
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Detection tool for measuring height of lug plane of motor car bogie axle box lower body
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