GMI (Galvanized Malleable Iron) and BMI (Black Malleable Iron) pipe fittings are robust, corrosion-resistant components crucial for plumbing and industrial piping systems. GMI fittings, coated in zinc, offer enhanced protection against rust, ideal for outdoor and high-moisture environments. Conversely, BMI fittings sport a black finish, providing durability and a classic appearance. Both types boast malleability for easy shaping during installation, serving diverse applications like water supply, gas distribution, and HVAC systems with reliable connections and efficient fluid flow.