China Tiedou used Doosan DH300LC-7 excavator | Excavator No. 24531-2 Introduction: This is a six-cylinder direct injection engine, and the engine and hydraulic pump have no maintenance failures. The exterior is also original paint. The working performance has been tested and the performance is very good. Of course, this excavator is slightly noisy, but compared with its price. I don't think the problem is big.