Established in 1993, DALIAN TONGDA MINING & METALLUERGICAL MACHINERY CO., LTD. is a professional manufacturer specializing in the design, manufacture, installation of metallurgical machinery, handling machinery and hoisting machinery.The company is located in the traditional industrial base of China, the most vigorous seashore city—Dalian, The geography position is very superior, The location is superior with comparatively convenient highway, railway, shipping and air ...