... 180Alloy cast iron, work surface, chrome-plated, sprayed molybdenum processing the surface of tin phosphide protective treatment.ND2 ... 280Alloy cast iron, work surface, chrome-plated, sprayed molybdenum processing the surface of tin phosphide protective treatment.ND5 ... 228.6Ductile iron, work surface, chrome-plated, sprayed molybdenum processing the surface of tin phosphide protective treatment Piston ...