Ngwa ngwa ngwa n'ibu
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Ntụtụ jidere ụdị ngwa ngwa ihe nrụkọba ihe
Crafts n'ibu ngwa ngwa coupler bụ pin jidere ụdị ngwa ngwa coupler.Enwere igwe ịghasa cylinder na-ejikọta na nko nke mbughari.Mgbe anyị na-eji mgbanaka pụrụ iche iji dozie cylinder ahụ, mee ka ọ gbatịa ma ọ bụ weghachite, nko ahụ ga-enwe ike ijide ma ọ bụ tufuo ntụtụ nke mgbakwunye gị.Crafts n'ibu ngwa ngwa coupler dabara na nke excavator n'okpuru 20t klas.
