集塵機 | 新東工機製作所 | 環境設備メーカー(全国対応),At our Ibaraki plant, another Komatsu world's first is undergoing proof of concept trials. We mated our flagship dump truck HD785 with a hydrogen engine and hydrogen tank system co-developed with KEYOU,一般粉塵用集塵機|環境|新東工業株式会社