Established on September 18, 2002, our factory has specialized in the casting of ductile iron municipal components for 24 years. Strategically located in Changxing, Zhejiang - at the junction of Zhejiang, Jiangsu, and Anhui provinces - we benefit from an exceptional logistical location and stand as a long-standing, professional domestic foundry. Initially focused on processing basic iron castings, we registered our proprietary "Dingjian" brand in 2008 and have maintained online operations for 18 years.link:https://www.jianguomanhole.com
