主營：日立EX300LC-3挖掘機駕駛室、日立EX300LC-3行走馬達、日立EX300LC-3液壓泵、日立EX300LC-3主閥、日立EX300LC-3回轉支撐、日立EX300LC-3電腦板、日立EX300LC-3顯示屏、日立EX300LC-3挖機座椅、日立EX300LC-3發動機四配套、日立EX300LC-3大修包、日立EX300LC-3液壓配件、日立EX300LC-3溢流閥、日立EX300LC-3操縱桿、日立EX300LC-3修理包、日立EX300LC-3缸套、日立EX300LC-3活塞、日立EX300LC-3大修包、日立EX300LC-3大小瓦、日立EX300LC-3止推片、日立EX300LC-3凸輪軸、日立EX300LC-3凸輪軸瓦、日立EX300LC-3新舊缸體/缸蓋、日立EX300LC-3曲軸、日立EX300LC-3連桿、日立EX300LC-3油門馬達、日立EX300LC-3邊蓋、日立EX300LC-3機油散熱器芯、日立EX300LC-3主副炮、日立EX300LC-3空調面板、日立EX300LC-3全車側門、日立EX300LC-3內飾件、日立EX300LC-3機濾、日立EX300LC-3液壓濾、日立EX300LC-3啟動馬達、日立EX300LC-3空調壓縮機總成、日立EX300LC-3雨刷器總成、日立EX300LC-3雨刷馬達總成、日立EX300LC-3渦輪增壓器、日立EX300LC-3電瓶箱、日立EX300LC-3全車玻璃、日立EX300LC-3發動機罩、日立EX300LC-3液壓蓋、日立EX300LC-3油散、日立EX300LC-3水箱，日立EX300LC-3發動機總成、日立EX300LC-3挖斗、日立EX300LC-3油缸，日立EX300LC-3驅動齒、日立EX300LC-3托帶輪、日立EX300LC-3鏈條、日立EX300LC-3履帶板、日立EX300LC-3銷軸、襯套、日立EX300LC-3引導輪、半軸、日立EX300LC-3行走馬達總成、日立EX300LC-3回轉馬達總成、多路閥總成、日立EX300LC-3液壓泵總成、日立EX300LC-3發動機總成、日立EX300LC-3旋轉泵總成、日立EX300LC-3行走減速機、日立EX300LC-3行星齒輪、日立EX300LC-3牙箱、日立EX300LC-3軸承、日立EX300LC-3分配閥、日立EX300LC-3多路閥、日立EX300LC-3泵膽、日立EX300LC-3配油盤、日立EX300LC-3缸體、日立EX300LC-3柱塞、日立EX300LC-3驅動軸/傳動軸、日立EX300LC-3連軸器、日立EX300LC-3回程盤、日立EX300LC-3止推板、日立EX300LC-3殼體、日立EX300LC-3提升器、日立EX300LC-3液壓油缸（鏟斗、動臂、斗桿油缸總成），缸體、缸蓋、油底殼、偏心軸、缸套組件、四配套、發動機大修件。