Ningbo Hento Metal Products Co., LTD, located in Ningbo City, Zhejiang Province, China, is a professional manufacturer integrated with production and research & development. Products are widely used in industries such as petroleum, electric power, automobile, food, chemical engineering, railway, mining, steel, shipbuilding and machinery etc.; Our main products are silica sol precision casting, forging and precision machining of stainless steel 304, 304 L, 304, 316 L and A182 - F316L; other related materials.