Outstanding Cost Advantage
The market price of ductile iron grooved fittings is generally far lower than that of stainless steel; standard couplings and elbows cost only a few to a few dozen yuan per unit. With controllable bulk procurement costs, they are suitable for the vast majority of standard civil, municipal, and fire-protection water supply and drainage projects.
Performance Fully Meets Standard Requirements
They combine the corrosion resistance of cast iron with toughness approaching that of steel. With a compressive strength exceeding 100 MPa and excellent resistance to seismic activity, ground settlement, and leakage, they fully meet the operational requirements of mainstream applications such as fire protection and general water supply and drainage, offering a service life of several decades.
Low Costs for Accessories and Maintenance
These products adhere to unified national standards, feature high market availability, and utilize interchangeable accessories. Installation requires no specialized techniques, and maintenance or replacement costs are far lower than those for niche materials, resulting in a lower total cost of ownership over the long term.