| Number |
Subject |
| 620.1 |
Engineering mechanics and materials |
| 620.11 |
Materials science |
| 620.112 |
Properties of materials |
| 621 |
Applied physics |
| 621.36 |
Applied optics and paraphotic phenomena; |
| 621.3692 |
Fibre optics |
| 621.3815 |
Electronic components and circuits |
| 666 |
Ceramic and allied technologies |
| 668.4 |
Plastics |
| 668.9 |
Polymers |
| 669 |
Metallurgy |
| 671.3 |
Mechanical working of metal; |
| 672 |
Iron, steel, other iron alloys; |
| 673 |
Nonferrous metals |
| 674 |
Wood, wood products |
| 676 |
Pulp & paper technology |
| 677 |
Textiles |
| 678 |
Elastomers and elastomer products |
| 681.4 |
Optical testing |
| 808.02-808.06 |
Essay, reports and technical writing |
