| ITEMS CODE | SIZE | DIAMETER |
| SSTT10 | NO 10 | 22 CMS |
| SSTT11 | NO 11 | 24 CMS |
| SSTT12 | NO 12 | 26.5 CMS |
| SSTT13 | NO 13 | 29 CMS |
| SSTT14 | NO 14 | 31.5 CMS |
| SSTT15 | NO 15 | 34 CMS |
| SSTT16 | NO 16 | 36.5 CMS |
| SSTT18 | NO 18 | 40 CMS |
| SSTT20 | NO 20 | 45 CMS |
| SSTT22 | NO 22 | 50 CMS |
| SSTT24 | NO 24 | 55 CMS |
| SSTT26 | NO 26 | 60 CMS |
| SSTT28 | No28 | 65 CMS |
| SSTT30 | NO 30 | 70 CMS |
| SSTT32 | NO 32 | 75 CMS |