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Hardened Steel Bushings

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October 20, 2026
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Video Description:
Watch this factory tour to see how hardened steel bushings are made—from precision rolling and forging to CNC machining, heat treatment, and final testing. We walk through the production process at Jinan Sennai's 33,000 sqm facility, showing real equipment and quality checks in action. Learn how 20+ years of experience supports OEM/ODM bushing supply for construction machinery.
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