 1 Inorganic materials |  |
| 2 Organic materials | |
| M-20 Unfilled thermoplastics resin | |
| M-25 Filled thermoplastics resin | |
| M-30 Duromers | |
| M-32 Elastomers | |
| | M-320 | NBR | |
| | M-321 | Silicone | |
| | M-322 | Hydrogenated Acrylonitrile-Butadiene Rubber (HNBR) | |
| | M-323 | Liquid Silicone Rubber (LSR) | |
| | M-324 | Ethylene-Propylene-Diene-Rubber (EPDM) | |
| | M-325 | Fluoropolymer rubber (FPM) | |
| | M-326 | Styrene-Butadiene-Rubber (SBR) | |
| | M-327 | Thermoplastic Elastomeres (TPE) | |
| | M-339 | Other elastomers | |
| M-34 Natural materials | |
| M-39 Other organics | |
| 3 Materials for product operation | |