Zhejiang Golden Machinery Factory is a national medium enterprise and also an advanced enterprise in Zhejiang province. There is a professional research and development center that integrates product R＆D and manufacturing. The enterprise has about 200 various testing & producing equipments for the machinery manufacturing and with rich experience in installation and debugging work. Otherwise, the factory strictly implements of the IS09001: 2008 quality management system, and annual production of metal structures metal work are more than 25000 tons. We have stable technical cooperation with metallurgy, chemical industry academies. In tens of years developing, we gradually improve mixing enrichment equipments for hydrometallurgy. Currently, our technique and equipments of hydrometallurgy still at the domestic leading level. Because of the continuous innovation concept of leadership and the advanced technique, our enterprise has already become the leading enterprise in China that owned integrated technologies and equipments for hydrometallurgy.