Yantai DNG Heavy Industry Co., Ltd (Abreviated as DNG) wa ni ilu Yantai, eyiti a mọ ni ipilẹ iṣelọpọ ti China Hydraulic breakers.DNG ni agbara imọ-ẹrọ ti o lagbara ati iriri iṣelọpọ ọlọrọ, eyiti o ṣe amọja ni iṣelọpọ ọpọlọpọ awọn òòlù hydraulic ati awọn ohun elo, gẹgẹbi awọn chisels, pistons, iwaju ati ori ẹhin, igbo chisel, igbo iwaju, pin ọpa, awọn bolts, ati awọn ọja atilẹyin miiran.DNG ni itan diẹ sii ju ọdun 10 lọ, ati ile-iṣẹ kọja ISO9001, iwe-ẹri ISO14001 ati iwe-ẹri EU CE.