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Shanghai Leerwo specializes in advanced sand casting (resin sand) and precision casting (silica sol casting) technologies, providing high-precision casting solutions for carbon steel, alloy steel, and stainless steel. As an impeller pump supplier and impeller casting manufacturer, we support mass customization for a variety of industrial applications. 📦Factory Direct | 💬Quick Quote | 🔧Strict Quality Inspection Fill out the form now to get your exclusive quote!