Hollow Blocks
Technical Specifications
| Dimensions 20/40 | 10 | 12 | 20 | 25 |
| Block weight locked /kg | 13 | 14 | 20 | 23 |
| Nerve length thickness /cm | 3 | 3 | 3.5 | 3.5 |
| Transverse nerve thickness /cm | 2:3 | 2:3 | 2:3 | 2:3 |
| Strengthens Kg/Cm2 | 40:140 | |||
| Fire resistance (hour) | 2:3 | |||
| Absorption /gm | 208:288 | |||
