STEEL AND METAL PIPES AND TUBING AND FITTINGS THEREFORE, NAMELY, METAL PIPE AND TUBE JOINTS; METAL PIPE COLLARS; METAL JUNCTIONS FOR PIPES; SEAMLESS METAL LINE PIPES; WELDED METAL LINE PIPE; METAL MOTHER PIPES; PETROCHEMICAL METAL PIPES; BOWER METAL PIPES; METAL EXCHANGER PIPES AND METAL TUBE EXCHANGER PIPES; METAL DRILLING PIPES; STEEL AND METAL PIPES AND VESSELS USED FOR TRANSPORTING OIL AND FUEL; METAL TUBES USED IN AUTO PARTS AND SAFETY DEVICES

Chemical additives in the nature of catalytic fluids for use in exhaust systems for reducing engine emissions