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The DN4000 Ductile Iron Butterfly valve, the largest in domestic water diversion industry produced by our company, has been inspected and tested.

DN4000球鐵蝶閥是國內目前引水行業應用大口徑的鑄鐵蝶閥，國內有能力生產的企業非常少。公司從設計、鑄造、加工等多方面針對該產品進行創新，目前該產品已完成檢驗檢測，等待發貨。