Black Malleable Iron are pipe fittings made from malleable cast iron, coated with a black finish for corrosion resistance. They are commonly used in plumbing, gas, and industrial piping systems where durability and strength are required.Elbows (90°, 45°) Tees (Equal, Reducing) Couplings (Standard, Reducing) Unions Bushings Plugs & Caps Nipples (Close, Hex) CrossesStandards & Compliance FM/UL Listed: Fire protection systems.ISO 9001: Quality management.ISO 14001 Environmental Management System certificated.OHSAS 18001 Occupational Health and Safety Assessment Series certificated