Set of 23 Standard Metallurgical Specimens for Microscope Can be used in Labs for Comparison, For Teaching etc These Cover nearly Entire range of Metallury Includes booklet with Images of samples through a Microscope Information on Chemical composition, Mechanical Treatment, Heat Treatment & Etchent. 1. Dead Mild Steel 2. Low Carbon Steel 3. Medium Carbon Steel (Annealing) 4. Medium Carbon Steel (Normalizing) 5. Decarburised High Carbon Steel 6. Inclusion in Steel 7. Hardened Steel 8. Tempered Steel 9. Carburised Steel 10. Tool Steel 11. Grey Cast Iron 12. White Cast Iron 13. Mottled Cast Iron 14. Ductile Cast Iron 15. Cartridge Brass 16. Muntz Metal 17. Tin Bronze 18. Electroplated Component 19. Anodised Aluminium 20. Fusion Welded Mild Steel 21. Friction Welded Steel 22. Powder Metallurgy Component 23. Deformed Mild Steel.