Waxa jira laba rullaleyaal ku jira wareegga gudaha ee Is- toosinta Kubadda Bearing, kuwaas oo muujinaya wareegga, iyo xuddunta qalooca goobtu waxa ay la socotaa xarunta sidda. Sidaa darteed, wareegga gudaha, kubbadda iyo wax-haystaha, goobada bannaanka ayaa si xor ah u foorarsan karta. Sidaa darteed, leexashada ay sabab u tahay...
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