| Product group |
Test certificate No. |
Issued by |
| Solid pipe suspension elements according to KWU-HK |
T12-85-07, Rev. b |
TÜV Süddeutschland, München |
| Constant suspension elements |
T04-85-02 |
RW-TÜV, Essen |
| Spring suspension elements |
T12-84-11, Rev. a |
TÜV Süddeutschland, München |
| Articulated braces |
T12-84-12, Rev. b |
TÜV Süddeutschland, München |
| Resilient articulated braces |
T12-87-02 |
TÜV Süddeutschland, München |