- Technical Patents
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- A Quenching Process for Splined Shaft Yokes
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- A Ball Type Universal Joint
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- A Hydraulic Telescopic Sleeve
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- A Simple Universal Joint
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- A Protective Sleeve for Drive Shafts
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- Horizontal Press-Fitting Machine
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- Drive Shaft for Heavy-Duty Trucks
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- An External Splined Shaft Yoke
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- A Spline Sleeve
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- Detachable Oil Seal Assembly for Protective Sleeves








