What's more, We invested in automatic engine body cleaning machines, high-pressure ultrasonic cleaning machines to guarantee high quality and these machines can be used to remove iron and aluminum scrapes preventing wear and tear. In addition, we also own 64 advanced testing stands, which is the most in quantity among our competitors, 100% engines will be tested for 45 minutes. The advantages of longer testing time can guarantee the well running-in among connecting rod, crankshaft, and gear, which make the engine a stable performance, and test the problem of oil leakage, temperature, and pressure.