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Device for preventing slewing mechanism from automatically rotating and operation method thereof
Automobile seat beam with unequal thickness and manufacturing method thereof
Variable-thickness automobile front bumper and manufacturing method thereof
Variable-thickness automobile doorsill beam and manufacturing method thereof
Net spoke reinforced commercial vehicle hub and production device and production method thereof
Variable-thickness automobile roof middle cross beam and manufacturing method thereof
Effects of Gust on Aerodynamic Power Consumption of Flapping Wings