Burburiyaha gyratory ee aasaasiga ah qaybta concave

Sharaxa guud

Qaybta concave waa qaybaha ugu badan ee burburiyaha concave ee aasaasiga ah. Qaybta concave had iyo jeer waxay ka samaysan tahay bir manganese sare leh laakiin in ka badan ayaa laga sameeyaa birta daawaha ah iyo birta chrome si loo gaadho  qiimaha ugu fiicanhalkii tan la soo saaro.

Qorraxdu waxay soo saari doontaa qaybo koofiyad ah oo kala duwan oo ah birta aluminiumka ah iyo birta chrome si loo dhimo wakhtiga dhimista burburiyaha gyratory-ga aasaasiga ah.