Peb tsom thiab tswj txhua qhov kev nthuav dav ntau lawm, Tsuas yog rau kev xa khoom zoo rau cov neeg siv khoom.
Cov khoom siv ntawm cov kabmob slewing yog feem ntau siab alloy-qauv steels, xws li 42CrMo, 50Mn.
Cov khoom ntawm dov lub cev yog GCr15 thiab nws yog yuav los ntawm cov neeg muag khoom hauv tsev uas zoo tshaj plaws.
Cov khoom muaj xws li: Ib Leeg thiab Ob Kab Kab, Peb Kab Cov Menyuam, Hla Cov Menyuam Sib Nqus thiab Unsealed Internal Geared, Sab Nraud Geared thiab Non-Geared Clearance lossis Preloaded.