Strong spring
| Type | Product code |
| Light and small load | TF |
| Type | Product code |
| Light load | TL |
| Type | Product code |
| Medium load | TM |
| Type | Product code |
| Heavy load | TH |
| Type | Product code |
| Super heavy load | TB |
| Type | Product code |
| Light and small load | TF |
| Type | Product code |
| Light load | TL |
| Type | Product code |
| Medium load | TM |
| Type | Product code |
| Heavy load | TH |
| Type | Product code |
| Super heavy load | TB |