OEM annular gear 1,annular gear used in ... establishing a long-term friendly cooperative partnership with DHI.DCW Group Co.,Ltd, and Dalian Hitachi machinery equipment Co., ... of heavy machinery manufacture engineering. With DHI, DCW group cooperation in several years, the production we provided has ... AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); OEM annular gear