The company, named Ningbo Yinzhou Sanxin Precision Foundry Factory, located at Ningbo city of China. Now, it owns several dozen sets of machinery equipment with daily capacity 2000 ton. Adopting water glass, colloidal silica and other casting technology, using advanced technology in foundry and fusion skill by intermediate frequency electric cooker, the company produces general carbon steel, alloy steel, stainless steel etc. such as valve, mineral machine, hardware fittings, Auto-fittings.

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