CAST-METAL PICKLING CRATES OF CORROSION-RESISTING COMPOSITION, CAST-METAL JET MEMBERS OF CORROSION-RESISTING COMPOSITION, CAST-METAL PIPE FITTINGS OF CORROSION-RESISTING COMPOSITION AND CAST-METAL VALVE PARTS OF CORROSION-RESISTING COMPOSITION

METAL PIPES OF CORROSION-RESISTING COMPOSITION, METAL PIPE FITTINGS OF CORROSION-RESISTING COMPOSITION, CAST METAL NAILS OF CORROSION-RESISTING COMPOSITION, AND METAL VALVES OF CORROSION-RESISTING COMPOSITION FOR PIPE LINES AND THE LIKE