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Can a solid steel frame with a load of 20 tons support a hydraulic press?載重20噸的實心鋼架支撐得住液壓機?
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Duration: 3:31
Views: 8.1K
Submitted: 4 years ago
Description:
Can a solid steel frame with a load of 20 tons support a hydraulic press? 載重20噸的實心鋼架支撐得住液壓機?
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