国产精品毛片a∨一区二区三区-国产精品毛片av999999-国产精品毛片va一区二区三区-国产精品毛片大码女人-国产精品毛片久久久久久久-国产精品毛片无码

工程機械/履帶式挖掘機        Construction Machinery/Crawler Excavator

應用場景       Application scenarios

履帶式挖掘機主要用于土石方工程的挖掘作業，特別適用于較為惡劣的工作環境。

Crawler excavators are mainly used for excavation operations in earthwork engineering, especially suitable for harsh working environments.

主要參數     Parameters