Kobelco SK350-8 second-hand excavator No. 24330-1 passed 21 tests perfectly. There were no obvious bumps in the appearance test. The chassis structure had normal signs of use. The cab was clean and refreshing. The structure was complete. The overall machine test results showed no accidents or deformation of the core of the excavator. The test engine is in perfect idle speed. There is no speed loss, jitter or abnormal noise during use. The power output is stable. The hydraulic pump and distribution valve are in healthy and smooth operation. The performance is excellent. The comprehensive evaluation is perfect.