A ma ama kachasị mma ọtụtụ ndị na-eweta usoro na-ebugharị - bụ usoro ntuziaka mmanụ lubrication - Jianhe
A ma ama kachasị mma ọtụtụ ndị na-eweta usoro na-ebubata ya - meekwa ya mmanụ ọkụ mmanụ lubrication - Janhedenail:
Ihe onyonyo zuru ezu:
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Ntuziaka Ngwaahịa metụtara:
Iji nweta ihe ndị ahịa chọrọ, arụmọrụ niile na-arụ ọrụ n'usoro anyị na-eji eme ihe " Ngwaahịa ahụ ga-enyefe ụwa niile, dịka: Canada, United Kingdom, Tuinu, Anyị Ga-eweta ọtụtụ ihe ka mma na usoro dị iche iche na ọrụ ọkachamara. Anyị ji obi anyị niile nabata ndị enyi site na ụwa iji leta ụlọ ọrụ anyị ma na-arụkọ ọrụ na ogologo oge nke ogologo - oge na uru mmekọrịta.