Constant Engineering (CEPL) is a manufacturer of industrial gases, equipment, and consumables. It offers tanks and pressure or non-pressure vessels, dish ends, pipe, ducting, heavy structure (columns, girders, conveyor, tresses), bulk material handling system (hopper, bins, etc.), and other products. The company also provides piping, mechanical engineering, construction of industrial sheds, offices, buildings, and roads, production of oxygen, and other services.