| Resin Grade | Manufacturer | Category | Trademark |
|---|---|---|---|
| Witcom PEEK 3C/3L1-EM | Witcom Engineering Plastics B.V. | PEEK | Witcom PEEK |
| Witcom PEEK 3C-EM | Witcom Engineering Plastics B.V. | PEEK | Witcom PEEK |
| Witcom PEEK 4L1 | Witcom Engineering Plastics B.V. | PEEK | Witcom PEEK |
| Witcom PEEK 6C/3L1-EM | Witcom Engineering Plastics B.V. | PEEK | Witcom PEEK |
| Witcom PEEK 2C-EM | Witcom Engineering Plastics B.V. | PEEK | Witcom PEEK |
| Witcom PEEK 2007/020 | Witcom Engineering Plastics B.V. | PEEK | Witcom PEEK |