a) Emere ya site na PC doro anya siri ike.
b) Dabara na bọtịnụ nkwụsị mberede pịa ma ọ bụ skru.
c) A na-eji ya nke ọma ma na-egbochi ndị ọrụ ịrụ ọrụ n'enweghị nlezianya.
d) Maka dayameta oghere nke 22-30mm.
| Nkebi nke NO. | Nkọwa |
| SBL01-D22 | Ogologo: 31.6mm; dayameta mpụta: 49.6mm; dayameta ime: 22mm |
| SBL01M-D25 | Ogologo: 31.6 mm; dayameta mpụta: 49.6 mm; dayameta ime: 25 mm |
| SBL02-D30 | Ogologo: 31.6mm; dayameta mpụta: 49.6mm; dayameta ime: 30mm |


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