Yantai DNG Heavy Industry Co., Ltd. (Abbreviated as DNG) is located in Yantai City, which is known as production base of China Hydraulic breakers. DNG has strong technical strength and rich production experience, which specialize in producing various of hydraulic hammers and spare parts, such as chisels, pistons, front and back head, chisel bush, front bush, rod pin, bolts, and other supporting products. O le DNG o loʻo silia ma le 10 tausaga, ma le fale gaosi pasi le ISO9001, IO14001 tusipasi ma EU1 faʻamaonia.