<正> Hengyang Non-ferrous Metallurgical Equipment Manufactory is a large enterprise with more than 40 year's history, turning out mining and metallurgical facilities. It is located in the City of Hengyang, Hunan Province, covering an area of 1.14 million square meters. As a communication hub, this areaa enjoys a convenient transpor tation netwokr, since it is stituated at the intersaction of two railway lines (Beijing-