Bututun ƙarfe marasa sumul don hakar kwal
-
Bututun ƙarfe marasa sumul don haƙar kwal- GB/T 17396-2009
Ana amfani da bututun ƙarfe mara sumul don ma'adinan kwal galibi don ƙera bututu mara sumul don
injin hydraulic a ma'adinan kwal.
