A na-akọwakarị nkọwa nkedo site na ndị a: Dayameta wiil: nha dayameta nke wheel nkedo, na-abụkarị na millimita (mm) ma ọ bụ sentimita (inch). Ihe nkedo nkedo wheel dayameta na-agụnye 40mm, 50mm, 63mm, 75mm, 100mm, 125mm, 150mm, 200mm na na. Obosara wheel:...
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