Sewing-thread
| Type | Technical specifications | Picture |
| G1 |
Quality Cortoria 50 |
 |
| G2 | Quality - Lin T18/3 Tube = 250 gr - 6 colors |
 |
| G3 | Quality - Cortoria 36 Polyester cotton Tube = 1000 m - 8 colors |
 |
| G4 | Quality - Nylon nr. 40 Tube = 3500 m - 15 colors |
 |