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Hinged pin shaft -- copper-tin alloy unpolished
Coal machine industry commonly used a variety of cylinder, outer cylinder, live column, pin, guide sleeve, piston, disc kit,
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The inner hole of the side push cylinder is plated with
Coal machine industry commonly used a variety of cylinder, outer cylinder, live column, pin, guide sleeve, piston, disc kit,
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Guide sleeve - copper-tin alloy
Coal machine industry commonly used a variety of cylinder, outer cylinder, live column, pin, guide sleeve, piston, disc kit,
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Pin shaft zinc plating
Coal machine industry commonly used a variety of cylinder, outer cylinder, live column, pin, guide sleeve, piston, disc kit,
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Plunger inner end face copper-tin alloy unpolished condi
Coal machine industry commonly used a variety of cylinder, outer cylinder, live column, pin, guide sleeve, piston, disc kit,
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Cylinder bottom - copper-tin alloy plating
Coal machine industry commonly used a variety of cylinder, outer cylinder, live column, pin, guide sleeve, piston, disc kit, valve body (seat) and other surface...
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Piston - copper-tin alloy
Coal machine industry commonly used a variety of cylinder, outer cylinder, live column, pin, guide sleeve, piston, disc kit,
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High strength steel GQG06
High strength steel:Q355C, Q460, Q550D, Q690D and other materials, professional sales of Angang, Laigang, Wugang, Shan Steel,
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