Straight couplings are the ideal for connecting ductile iron pipe with equivalent outside diameter.
Jilin Songjiang Smart Joint Co., Ltd is the first manufacturer to develop internal wire transitional fitting in China. We offer products in various fields: water and gas supplying, dewatering, irrigation and sewage treatment. In addition to this internal wire transitional fitting, we also provided Electrofusion Fitting for Gas, PE Metal Transitional Fitting for Gas, Electro-fusion Fitting for Water, Water and Mining Flange Adapter, Irrigation Fittings, Drainage Fittings, Large Size Fittings, Fusion Machine (Butt Fusion and Electro-Fusion as well as Accessories), etc. Our products have exported to Australia, Brazil, Poland, Denmark, Germany, Canada, Libya, Malaysia, the United States, New Zealand, Iran, Israel, Chile and Japan, etc.
