1:Our main material is scrap iron, fierce, silicon and zinc. 2:We ensure proper net weight without compromising quality or cutting corners. 3: Hardness <180. Fine workmanship 100%. 4:About the surface, we have hot dipped galvanized, electric galvanized and black. 5:In addition to standard weight options, we also offer our customers a range of add-on weights. Whether you prefer a heavier or lighter option, we've got you covered. Our team is committed to providing flexibility and options to meet your specific needs. 6:Our Malleable Iron 90 Degree Elbow Fittings are durable and reliable solution for joining pipe at 90 degree .Constructed from high-quality malleable iron, this fitting offers exceptional strength and corrosion resistance, ensuring long-lasting performance in a variety of applications. These fittings are precision engineered to provide a tight, secure connection, preventing leaks and ensuring optimal flow of liquid or gas. Its 90-degree elbow shape can effectively change the direction of the piping system, optimizing the overall layout and function. Our 90 degree elbow fittings are easy to install and provide hassle-free solutions for plumbing projects, industrial applications and more. Its threaded ends ensure a secure, tight fit, reducing the risk of pipe displacement or damage. Additionally, our malleable iron 90 degree elbow fittings are suitable for both high and low pressure systems, making them versatile and adaptable to a variety of environments. It complies with all industry standards and is compatible with a wide range of piping materials, providing design and installation flexibility. Choose our Malleable Iron 90 Degree Elbow Fittings for their durability, reliability and ease of use. Experience seamless, efficient plumbing with this vital plumbing component.